Drug Testing Laws By State

Workplace Drug Testing Laws by State

Click on a state below for an understanding of its drug testing laws.

In each U.S. state, the specifics of drug testing regulations can vary significantly. Some states have specific statutes governing drug testing in the workplace, outlining permissible testing methods, procedures, and employee rights. Other states rely on common law principles or guidelines issued by regulatory agencies to govern drug testing practices.

It is essential for employers to understand and comply with state and federal laws when implementing drug testing policies and procedures. Additionally, consulting with legal counsel familiar with state employment laws can provide guidance on specific legal requirements and best practices related to drug testing

THE ABOVE INFORMATION IS NOT OFFERED AS LEGAL ADVICE, BUT IS INSTEAD FOR INFORMATIONAL PURPOSES.

Employment Drug Testing Rules Across All 50 States

Select a state below for a quick employer-focused reference covering whether workplace drug testing is generally permitted, common pre-employment and random-testing considerations, urine and oral-fluid testing, rapid versus laboratory testing, and important marijuana/THC issues. For the fuller state-law summary, continue to use the interactive map above.

Alabama

EMPLOYER DRUG TESTING AT A GLANCE

Alabama Employment Drug Testing

Employment testing

Generally permitted. Alabama has a voluntary drug-free workplace program with specific procedures for employers that choose to participate.

Pre-employment / random

Pre-employment testing and random testing are generally allowed when handled under a written, consistently applied policy. The voluntary program has additional notice and procedural rules.

Urine

Yes. Urine testing is commonly used and is compatible with the state’s voluntary program.

Oral fluid / saliva

Potentially, depending on the employer’s non-DOT program and applicable procedures. Verify the specimen and laboratory requirements before using oral fluid under a voluntary-program claim.

Rapid / instant vs. lab

Use caution. Employers following Alabama’s voluntary workers’ compensation drug-free workplace program should use the testing procedures required by that program rather than relying on an unconfirmed rapid result.

Marijuana / THC

Generally may be included in a non-DOT panel. A marijuana result should still be evaluated against current medical-marijuana, disability, federal, and safety-sensitive requirements before adverse action.

Key employer note

Employers seeking the benefits of Alabama’s voluntary drug-free workplace program should follow its specific policy, notice, collection, confirmation, and laboratory requirements.

Need the detailed law summary? Use the interactive map above for the fuller Alabama workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Alaska

EMPLOYER DRUG TESTING AT A GLANCE

Alaska Employment Drug Testing

Employment testing

Generally permitted, but testing should be tied to a legitimate business purpose and a clear written policy.

Pre-employment / random

Pre-employment testing is generally permissible. Random testing is more defensible for safety-sensitive positions and where the policy and business need support it.

Urine

Yes. Urine is a recognized testing method.

Oral fluid / saliva

Use caution. Alaska’s voluntary-law framework has historically focused on urine and breath; confirm current requirements before substituting oral fluid in a program relying on that law.

Rapid / instant vs. lab

Point-of-care screening may be used in some non-DOT settings if the device and procedures satisfy applicable requirements, with non-negative results confirmed by a qualified laboratory.

Marijuana / THC

Generally may be tested for. Legal adult cannabis use does not automatically eliminate an employer’s ability to maintain a workplace drug policy, but off-duty privacy and job-relatedness should be considered.

Key employer note

Document the business reason for testing, apply the policy consistently, and use laboratory confirmation before employment action on a non-negative screen.

Need the detailed law summary? Use the interactive map above for the fuller Alaska workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Arizona

EMPLOYER DRUG TESTING AT A GLANCE

Arizona Employment Drug Testing

Employment testing

Generally permitted. Arizona also has a voluntary drug-testing-law framework that rewards employers who follow specified procedures.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, return-to-duty, and follow-up testing can generally be part of a compliant written program.

Urine

Yes.

Oral fluid / saliva

Yes, saliva/oral-fluid testing can be used in a properly designed non-DOT program, subject to applicable laboratory and procedural requirements.

Rapid / instant vs. lab

Not expressly prohibited in every non-DOT setting, but laboratory confirmation is the safer approach before adverse employment action.

Marijuana / THC

Testing may be permitted, but Arizona’s medical-marijuana protections can limit adverse action based solely on patient status or a marijuana result in some circumstances. Safety-sensitive and impairment issues matter.

Key employer note

Separate the question ‘Can we test?’ from ‘Can we act on this result?’ when marijuana is involved.

Need the detailed law summary? Use the interactive map above for the fuller Arizona workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Arkansas

EMPLOYER DRUG TESTING AT A GLANCE

Arkansas Employment Drug Testing

Employment testing

Generally permitted. Arkansas offers a voluntary drug-free workplace program with specific requirements.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, return-to-duty, and follow-up testing can generally be included in a compliant program.

Urine

Yes.

Oral fluid / saliva

Potentially in a non-DOT program, but employers relying on the voluntary program should confirm the specimen methods recognized by that program.

Rapid / instant vs. lab

Employers using the voluntary drug-free workplace program should not rely on an instant test as the final basis for action; required laboratory procedures and confirmation should be followed.

Marijuana / THC

Generally may be included, but Arkansas medical-marijuana protections and job-specific exceptions can affect what an employer may do with a positive result.

Key employer note

If the employer is participating in the voluntary program, use the program’s specified laboratory, confirmation, policy, and notice procedures.

Need the detailed law summary? Use the interactive map above for the fuller Arkansas workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

California

EMPLOYER DRUG TESTING AT A GLANCE

California Employment Drug Testing

Employment testing

Permitted in defined circumstances, but California privacy and employment law make broad testing more restrictive than in many states.

Pre-employment / random

Post-offer pre-employment testing is generally more defensible than broad applicant testing. Random testing is usually reserved for safety-sensitive or otherwise strongly justified positions.

Urine

Yes, when the testing itself is lawful and the collection/laboratory process complies with applicable rules.

Oral fluid / saliva

Potentially. The legality of the testing event and the laboratory/clinical testing requirements still matter.

Rapid / instant vs. lab

Use caution. California clinical-laboratory rules and confirmation requirements make lab-based testing the safer default for employment decisions.

Marijuana / THC

Restricted for many non-exempt jobs. California law protects lawful off-duty cannabis use and generally limits reliance on tests that detect nonpsychoactive cannabis metabolites, with important exceptions including certain safety-sensitive, construction, and federally regulated situations.

Key employer note

California requires a job- and circumstance-specific approach. Do not treat a positive THC metabolite result as an automatic disqualifier.

Need the detailed law summary? Use the interactive map above for the fuller California workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Colorado

EMPLOYER DRUG TESTING AT A GLANCE

Colorado Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, privacy, discrimination, and any local rules.

Pre-employment / random

Pre-employment and random testing are generally possible under a written policy, although local rules and the nature of the position should be considered.

Urine

Yes.

Oral fluid / saliva

Generally possible in a non-DOT program when the method and laboratory process are appropriate.

Rapid / instant vs. lab

Generally possible, but confirm non-negative screens with a qualified laboratory before adverse action.

Marijuana / THC

Generally may be tested for. Colorado’s legalization of marijuana does not by itself require private employers to tolerate workplace use or a positive test, but local, disability, medical, and safety-sensitive issues can still matter.

Key employer note

Check local ordinances, especially for employers operating in municipalities with additional workplace-testing rules.

Need the detailed law summary? Use the interactive map above for the fuller Colorado workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Connecticut

EMPLOYER DRUG TESTING AT A GLANCE

Connecticut Employment Drug Testing

Employment testing

Allowed, but Connecticut places meaningful restrictions on employee urinalysis testing and requires specific applicant procedures.

Pre-employment / random

Applicants may be tested if written notice and statutory procedures are followed. Current-employee testing generally requires reasonable suspicion; random urinalysis is limited to federally authorized testing, designated high-risk/safety-sensitive jobs, certain transportation jobs, or qualifying EAP situations.

Urine

Yes, with Connecticut’s statutory restrictions and confirmation requirements.

Oral fluid / saliva

Oral-fluid testing can be used in appropriate non-DOT programs, but employers should confirm how the method fits the specific testing circumstance and current state requirements.

Rapid / instant vs. lab

An initial screen should not be treated as a final positive. Laboratory confirmation and required result procedures should be completed before adverse action.

Marijuana / THC

Restricted/conditional. Connecticut cannabis law can limit adverse action based solely on THC, particularly where the employer has not adopted a compliant written policy or the job is not exempt. Impairment, federal requirements, and exempt positions remain important.

Key employer note

Connecticut is a state where the reason for the test, the employee’s job, written notice/policy, and confirmation procedure all matter.

Need the detailed law summary? Use the interactive map above for the fuller Connecticut workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Delaware

EMPLOYER DRUG TESTING AT A GLANCE

Delaware Employment Drug Testing

Employment testing

Generally permitted for private employers, with additional requirements in certain industries and public-sector settings.

Pre-employment / random

Pre-employment and random testing are generally possible unless a specific law, contract, or industry rule says otherwise.

Urine

Yes.

Oral fluid / saliva

Generally possible in a properly designed non-DOT program.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Testing may be permitted, but Delaware medical-marijuana protections can limit adverse employment action based solely on a registered patient’s status or a positive result in some circumstances.

Key employer note

Check industry-specific requirements and medical-marijuana protections before taking action.

Need the detailed law summary? Use the interactive map above for the fuller Delaware workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Florida

EMPLOYER DRUG TESTING AT A GLANCE

Florida Employment Drug Testing

Employment testing

Generally permitted. Florida also has a voluntary drug-free workplace program tied to workers’ compensation benefits.

Pre-employment / random

Pre-employment, reasonable-suspicion, routine-fitness, follow-up, and other testing can be conducted under the voluntary program; random testing may also be used when the program and policy support it.

Urine

Yes. Urine is the principal drug-testing specimen under Florida’s voluntary drug-free workplace framework.

Oral fluid / saliva

Possible outside the voluntary-program framework in some non-DOT programs, but do not assume it satisfies the voluntary program’s requirements.

Rapid / instant vs. lab

Limited. A rapid screen should not be used as the final positive result under a program requiring laboratory confirmation and MRO review.

Marijuana / THC

Generally may be included in a private-employer non-DOT panel. Florida does not provide a broad statewide right to use marijuana at work, but medical, disability, local, and job-specific issues can still apply.

Key employer note

Employers seeking Florida drug-free workplace workers’ compensation benefits should follow the program’s exact testing and laboratory rules.

Need the detailed law summary? Use the interactive map above for the fuller Florida workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Georgia

EMPLOYER DRUG TESTING AT A GLANCE

Georgia Employment Drug Testing

Employment testing

Generally permitted. Georgia has a voluntary drug-free workplace program.

Pre-employment / random

Post-offer pre-employment, random, reasonable-suspicion, post-accident, return-to-duty, and follow-up testing can generally be part of a compliant program.

Urine

Yes.

Oral fluid / saliva

Yes, oral fluid can be used in appropriate non-DOT testing programs, subject to the employer’s policy and applicable procedures.

Rapid / instant vs. lab

Under the voluntary program, point-of-care testing is more limited; for employment decisions, laboratory confirmation of a non-negative result is important.

Marijuana / THC

Generally may be included in non-DOT testing. Georgia’s limited medical-cannabis program does not create a broad right to be impaired at work, but medical/disability and job-specific issues should still be reviewed.

Key employer note

If using Georgia’s voluntary program, follow its policy, collection, laboratory, confirmation, and documentation rules.

Need the detailed law summary? Use the interactive map above for the fuller Georgia workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Hawaii

EMPLOYER DRUG TESTING AT A GLANCE

Hawaii Employment Drug Testing

Employment testing

Allowed, but Hawaii has detailed procedural requirements for workplace drug testing.

Pre-employment / random

Testing can be conducted for employment purposes when statutory notice, device, collection, and confirmation rules are followed.

Urine

Yes.

Oral fluid / saliva

Yes in appropriate circumstances; Hawaii specifically regulates certain point-of-care oral-fluid screening devices.

Rapid / instant vs. lab

Permitted only when the device and process meet state requirements. A non-negative point-of-care result should be confirmed through the required laboratory process before action.

Marijuana / THC

Generally may be tested for, but employers should consider medical-cannabis, disability, impairment, and job-specific requirements before acting.

Key employer note

Hawaii is procedure-heavy: device approval, notice, confirmation, and laboratory requirements are as important as the reason for testing.

Need the detailed law summary? Use the interactive map above for the fuller Hawaii workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Idaho

EMPLOYER DRUG TESTING AT A GLANCE

Idaho Employment Drug Testing

Employment testing

Generally permitted. Idaho has a voluntary drug-free workplace law.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, and other testing can generally be included in a written program.

Urine

Yes.

Oral fluid / saliva

Generally possible in a non-DOT program when the method and confirmation process are appropriate.

Rapid / instant vs. lab

Generally possible as an initial screen; non-negative results should be confirmed by a qualified laboratory before adverse action.

Marijuana / THC

Generally may be tested for. Idaho has no broad adult-use marijuana employment protection.

Key employer note

Use a clear written policy, consistent procedures, and laboratory confirmation before treating a screen as a positive.

Need the detailed law summary? Use the interactive map above for the fuller Idaho workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Illinois

EMPLOYER DRUG TESTING AT A GLANCE

Illinois Employment Drug Testing

Employment testing

Generally permitted for private employers, but cannabis and lawful-off-duty-conduct protections can affect how a policy is enforced.

Pre-employment / random

Pre-employment and random testing can generally be used, subject to the employer’s policy, job circumstances, collective-bargaining rules, and any industry-specific requirements.

Urine

Yes.

Oral fluid / saliva

Generally possible in a non-DOT program.

Rapid / instant vs. lab

Generally possible as an initial screen. Confirm non-negative results before adverse action; special public-works or regulated programs may require laboratory testing.

Marijuana / THC

Conditional. Illinois cannabis and lawful-products laws can affect employment decisions involving off-duty use. Employers can still address workplace impairment and may have greater latitude for safety-sensitive, federal, or otherwise exempt positions.

Key employer note

A THC-positive result should be evaluated together with the employer’s policy, signs of impairment, the job, and any applicable statutory exceptions.

Need the detailed law summary? Use the interactive map above for the fuller Illinois workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Indiana

EMPLOYER DRUG TESTING AT A GLANCE

Indiana Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to the employer’s written policy and any industry-specific rules.

Pre-employment / random

Pre-employment and random testing are generally possible.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Generally may be included in a non-DOT panel. Indiana does not have broad adult-use cannabis employment protections.

Key employer note

Use consistent testing criteria and document the policy and consequences in advance.

Need the detailed law summary? Use the interactive map above for the fuller Indiana workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Iowa

EMPLOYER DRUG TESTING AT A GLANCE

Iowa Employment Drug Testing

Employment testing

Allowed, but Iowa has a detailed mandatory statute governing many private-employer drug-testing programs.

Pre-employment / random

Pre-employment, reasonable-suspicion, post-accident, and random testing are permitted only when the statutory conditions, employee pools, policy, notice, and procedures are satisfied.

Urine

Yes.

Oral fluid / saliva

Yes, subject to Iowa’s statutory testing and confirmation procedures.

Rapid / instant vs. lab

An initial rapid/point-of-care screen may be used in appropriate circumstances, but a non-negative result must be handled through the required confirmation process.

Marijuana / THC

Generally may be included, but the employer must still comply with Iowa’s testing statute and any medical/disability or federally regulated requirements.

Key employer note

Iowa is a compliance-heavy state. The written policy, selection method, testing reason, notice, laboratory process, and employee rights all deserve review.

Need the detailed law summary? Use the interactive map above for the fuller Iowa workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Kansas

EMPLOYER DRUG TESTING AT A GLANCE

Kansas Employment Drug Testing

Employment testing

Generally permitted for private employers, although specific testing, laboratory, workers’ compensation, or industry rules may apply.

Pre-employment / random

Pre-employment and random testing are generally possible under a written policy unless a specific law or contract restricts the program.

Urine

Yes.

Oral fluid / saliva

Generally possible; saliva is recognized in some Kansas testing contexts.

Rapid / instant vs. lab

Use caution. The legal treatment of point-of-care testing can depend on the program and purpose; laboratory confirmation is the safer basis for employment action.

Marijuana / THC

Generally may be tested for. Kansas has no broad adult-use cannabis employment protection.

Key employer note

If the employer intends to rely on a test for workers’ compensation or another statutory benefit/defense, confirm the technical testing requirements.

Need the detailed law summary? Use the interactive map above for the fuller Kansas workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Kentucky

EMPLOYER DRUG TESTING AT A GLANCE

Kentucky Employment Drug Testing

Employment testing

Generally permitted. Kentucky has a voluntary drug-free workplace program with specific procedures.

Pre-employment / random

Post-offer pre-employment, random, reasonable-suspicion, post-accident, and follow-up testing can be used when the program requirements are met.

Urine

Yes. Urine is the principal drug-testing specimen under the voluntary program.

Oral fluid / saliva

Do not assume oral fluid satisfies the voluntary program’s testing requirements; confirm before using it for a program-based benefit.

Rapid / instant vs. lab

The voluntary program relies on laboratory testing rather than an unconfirmed instant result.

Marijuana / THC

Generally may be included in a non-DOT panel, but current medical-cannabis, disability, job-specific, and federal requirements should be reviewed before adverse action.

Key employer note

If using Kentucky’s voluntary program, follow the specified laboratory, policy, notice, and confirmation procedures.

Need the detailed law summary? Use the interactive map above for the fuller Kentucky workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Louisiana

EMPLOYER DRUG TESTING AT A GLANCE

Louisiana Employment Drug Testing

Employment testing

Generally permitted, but Louisiana regulates the laboratory and procedural side of workplace drug testing.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, and other testing can generally be part of a written program.

Urine

Yes.

Oral fluid / saliva

Yes. Saliva/oral fluid is among the specimen types that can be used when applicable requirements are met.

Rapid / instant vs. lab

FDA-cleared point-of-care screening may be used in some settings, but non-negative results should be confirmed by a qualified laboratory before adverse action.

Marijuana / THC

Generally may be included, but medical-cannabis, disability, safety-sensitive, and policy considerations can affect the employment response.

Key employer note

Pay close attention to Louisiana’s laboratory, chain-of-custody, confirmation, and result-handling requirements.

Need the detailed law summary? Use the interactive map above for the fuller Louisiana workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Maine

EMPLOYER DRUG TESTING AT A GLANCE

Maine Employment Drug Testing

Employment testing

Allowed, but Maine has one of the more restrictive workplace-testing frameworks and requires a compliant substance-use testing policy.

Pre-employment / random

Applicant testing is generally tied to a conditional offer. Employee testing, random testing, probable-cause testing, and rehabilitation-related testing are subject to detailed state rules and approvals.

Urine

Yes. Maine’s workplace-testing program has historically centered on urine testing.

Oral fluid / saliva

Do not assume oral fluid can replace the specimen methods permitted by an approved Maine workplace testing policy; confirm current Maine Department of Labor requirements first.

Rapid / instant vs. lab

Use caution. Maine’s testing framework generally favors approved laboratory procedures and confirmation rather than a stand-alone instant result.

Marijuana / THC

Restricted/conditional. Maine has cannabis-related employment protections, and employers should not treat off-duty cannabis use or a THC result as an automatic basis for action without reviewing current law, the approved policy, and job-specific exceptions.

Key employer note

Maine employers should have their testing policy reviewed for state approval/requirements before launching or materially changing a program.

Need the detailed law summary? Use the interactive map above for the fuller Maine workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Maryland

EMPLOYER DRUG TESTING AT A GLANCE

Maryland Employment Drug Testing

Employment testing

Generally permitted, subject to Maryland’s specimen, laboratory, confirmation, and employee-notice rules.

Pre-employment / random

Pre-employment and other testing can generally be conducted under a written, consistently applied policy.

Urine

Yes.

Oral fluid / saliva

Yes, subject to Maryland’s testing procedures.

Rapid / instant vs. lab

Point-of-care testing is more limited. Pre-employment screening may be possible with an appropriate device, but a non-negative result should be confirmed through a certified laboratory and reviewed as required.

Marijuana / THC

Generally may be included in a private-employer non-DOT panel, but medical-cannabis, disability, local, federal, and safety-sensitive rules can affect the response.

Key employer note

Maryland has technical testing requirements, so confirm specimen, device, laboratory, confirmation, and result-notice procedures before implementation.

Need the detailed law summary? Use the interactive map above for the fuller Maryland workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Massachusetts

EMPLOYER DRUG TESTING AT A GLANCE

Massachusetts Employment Drug Testing

Employment testing

Permitted, but Massachusetts privacy law and court decisions require the employer’s testing interest to be balanced against employee privacy.

Pre-employment / random

Pre-employment testing is generally more defensible. Random testing is strongest for safety-sensitive positions or where the employer can show a substantial business need.

Urine

Yes.

Oral fluid / saliva

Generally possible when the testing itself is lawful and the process is reliable.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Conditional. Employers may test for marijuana, but Massachusetts medical-marijuana disability/accommodation principles can affect adverse action. Recreational legalization does not eliminate workplace-policy rights.

Key employer note

For current employees, particularly non-safety-sensitive employees, document the business need and apply the policy narrowly and consistently.

Need the detailed law summary? Use the interactive map above for the fuller Massachusetts workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Michigan

EMPLOYER DRUG TESTING AT A GLANCE

Michigan Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to written policy, contracts, and any industry-specific rules.

Pre-employment / random

Pre-employment and random testing are generally possible.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; confirm non-negative results before adverse action.

Marijuana / THC

Generally may be tested for. Michigan’s adult-use cannabis law does not create a broad requirement that private employers permit workplace marijuana use or ignore a positive test.

Key employer note

A clear written policy remains important, especially for safety-sensitive jobs and post-accident or reasonable-suspicion testing.

Need the detailed law summary? Use the interactive map above for the fuller Michigan workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Minnesota

EMPLOYER DRUG TESTING AT A GLANCE

Minnesota Employment Drug Testing

Employment testing

Allowed, but Minnesota has a detailed Drug and Alcohol Testing in the Workplace Act and separate cannabis-testing restrictions.

Pre-employment / random

Applicant testing generally follows a conditional offer and consistent testing of applicants for the same position. Random testing is generally limited to safety-sensitive positions and certain other statutory categories.

Urine

Yes, through the required laboratory-based process.

Oral fluid / saliva

Do not assume oral-fluid or other alternative methods satisfy Minnesota’s statutory workplace-testing requirements; verify the current statute before use.

Rapid / instant vs. lab

Generally not a substitute for the laboratory procedures required by Minnesota’s workplace-testing law.

Marijuana / THC

Restricted for many jobs. Minnesota limits cannabis testing and cannabis-related employment action for many non-exempt positions, with exceptions that include safety-sensitive and other specifically listed jobs and federally required testing.

Key employer note

Minnesota employers should separately evaluate ‘drug/alcohol testing’ and ‘cannabis testing’ because the law treats them differently.

Need the detailed law summary? Use the interactive map above for the fuller Minnesota workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Mississippi

EMPLOYER DRUG TESTING AT A GLANCE

Mississippi Employment Drug Testing

Employment testing

Generally permitted. Mississippi has a voluntary drug-free workplace program.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, and other testing can generally be included when the program’s requirements are met.

Urine

Yes.

Oral fluid / saliva

Potentially outside the voluntary-program framework; confirm whether the desired specimen satisfies any program-based benefit the employer is seeking.

Rapid / instant vs. lab

Point-of-care screening may be used in some settings, but chain of custody and laboratory confirmation of non-negative results are important.

Marijuana / THC

Generally may be included, but current medical-cannabis protections and job-specific rules should be reviewed before action.

Key employer note

Employers relying on Mississippi’s voluntary program should follow its policy, notice, collection, confirmation, and laboratory requirements.

Need the detailed law summary? Use the interactive map above for the fuller Mississippi workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Missouri

EMPLOYER DRUG TESTING AT A GLANCE

Missouri Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, contracts, medical-cannabis rules, and any industry-specific requirements.

Pre-employment / random

Pre-employment and random testing are generally possible.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen. If the result will be used for a statutory benefit/defense or adverse action, laboratory confirmation is the safer approach.

Marijuana / THC

Generally may be tested for, but Missouri medical-marijuana protections can affect employment action in some circumstances. Employers can still maintain drug-free and impairment policies, particularly for safety-sensitive work.

Key employer note

Do not rely on a rapid non-negative result alone when significant employment consequences are involved.

Need the detailed law summary? Use the interactive map above for the fuller Missouri workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Montana

EMPLOYER DRUG TESTING AT A GLANCE

Montana Employment Drug Testing

Employment testing

Allowed, but Montana regulates workplace testing and also has off-duty lawful-product protections that can affect cannabis issues.

Pre-employment / random

Testing is permitted in defined circumstances under a written policy. Random testing is most defensible where the statute, job category, and policy support it.

Urine

Yes.

Oral fluid / saliva

Yes, oral fluid may be used when the program complies with Montana requirements.

Rapid / instant vs. lab

Point-of-care screening may be possible with an appropriate device, but non-negative results should be laboratory-confirmed and the program should meet Montana’s procedural requirements.

Marijuana / THC

Conditional. Montana’s cannabis and off-duty-conduct protections can limit adverse action based only on lawful off-duty use, while safety-sensitive, impairment, federal, and other exceptions can preserve employer testing rights.

Key employer note

Review both the workplace drug-testing statute and off-duty/cannabis protections before using THC results for employment decisions.

Need the detailed law summary? Use the interactive map above for the fuller Montana workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Nebraska

EMPLOYER DRUG TESTING AT A GLANCE

Nebraska Employment Drug Testing

Employment testing

Generally permitted, with state rules governing technical aspects of drug and alcohol testing.

Pre-employment / random

Pre-employment and random testing are generally possible under a written policy unless another law or contract restricts the program.

Urine

Yes.

Oral fluid / saliva

Generally possible as a body-fluid specimen when the testing process meets applicable requirements.

Rapid / instant vs. lab

Point-of-care screening may be used, but a non-negative result should be laboratory-confirmed before adverse action.

Marijuana / THC

Generally may be included. Nebraska has no broad adult-use cannabis employment protection.

Key employer note

Use a reliable chain of custody and confirmation process and make sure the written policy states who is tested, when, and what consequences apply.

Need the detailed law summary? Use the interactive map above for the fuller Nebraska workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Nevada

EMPLOYER DRUG TESTING AT A GLANCE

Nevada Employment Drug Testing

Employment testing

Generally permitted, but Nevada restricts how employers may use pre-employment marijuana screening results.

Pre-employment / random

Drug testing is generally possible, but a prospective employee usually cannot be refused employment solely because a screening test indicates marijuana, subject to statutory exceptions.

Urine

Yes, but Nevada laboratory rules can make employment testing more lab-centered than simple on-site screening.

Oral fluid / saliva

Possible when performed within applicable laboratory and testing requirements.

Rapid / instant vs. lab

Use caution. Nevada’s laboratory regulations make a compliant laboratory-based process the safer default for employment testing.

Marijuana / THC

Restricted at initial hiring. Nevada generally bars refusing to hire solely because a pre-employment screen indicates marijuana, with exceptions for specified jobs such as certain safety-sensitive, federally funded, driving, firefighting, or emergency positions.

Key employer note

A marijuana test may still be performed, but the key question is whether the result can legally be used to deny employment for that specific position.

Need the detailed law summary? Use the interactive map above for the fuller Nevada workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

New Hampshire

EMPLOYER DRUG TESTING AT A GLANCE

New Hampshire Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, contracts, and any industry-specific rules.

Pre-employment / random

Pre-employment and random testing are generally possible.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Generally may be included in a non-DOT panel. Medical-cannabis, disability, federal, and safety-sensitive issues should still be reviewed.

Key employer note

Use a written policy and consistent testing criteria, and confirm non-negative screens before treating them as positive.

Need the detailed law summary? Use the interactive map above for the fuller New Hampshire workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

New Jersey

EMPLOYER DRUG TESTING AT A GLANCE

New Jersey Employment Drug Testing

Employment testing

Permitted, but New Jersey privacy/case-law principles and cannabis law require careful handling of current-employee and marijuana testing.

Pre-employment / random

Pre-employment testing is generally possible. Random testing is more defensible for safety-sensitive positions or where a strong business justification exists.

Urine

Yes.

Oral fluid / saliva

Potentially, subject to New Jersey laboratory/licensing and testing requirements.

Rapid / instant vs. lab

Use caution. New Jersey’s clinical-laboratory rules make laboratory confirmation important; do not rely on a stand-alone instant result for adverse action.

Marijuana / THC

Conditional/restricted. Lawful cannabis use or a positive marijuana result generally should not be the sole determining factor for hiring or firing. Employers retain rights to maintain a drug-free workplace and address impairment, reasonable suspicion, accidents, federal requirements, and safety-sensitive work.

Key employer note

For marijuana, focus on workplace impairment and the job context rather than using a positive metabolite result as an automatic employment decision.

Need the detailed law summary? Use the interactive map above for the fuller New Jersey workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

New Mexico

EMPLOYER DRUG TESTING AT A GLANCE

New Mexico Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, contracts, and medical-cannabis/disability considerations.

Pre-employment / random

Pre-employment and random testing are generally possible unless a specific law or agreement restricts the program.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Generally may be tested for, but medical-cannabis and disability-related issues can affect employment decisions. Safety-sensitive and impairment concerns remain important.

Key employer note

If relying on a drug test for a workers’ compensation or other statutory defense, confirm the testing process meets the applicable technical requirements.

Need the detailed law summary? Use the interactive map above for the fuller New Mexico workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

New York

EMPLOYER DRUG TESTING AT A GLANCE

New York Employment Drug Testing

Employment testing

Drug testing for substances other than cannabis is generally possible for private employers, subject to policy, local law, and job-specific requirements.

Pre-employment / random

Pre-employment and random testing for non-cannabis drugs are generally possible, but New York City and other local rules can add restrictions. Federally regulated testing follows the applicable federal rules.

Urine

Yes, but New York clinical-laboratory and result-review requirements should be considered.

Oral fluid / saliva

Potentially, when collected and tested through a compliant process.

Rapid / instant vs. lab

Use caution. On-site/instant employment testing can trigger New York clinical-laboratory requirements; lab-based testing with proper confirmation is the safer default.

Marijuana / THC

Generally restricted. New York employers generally may not test employees for cannabis unless an exception in Labor Law § 201-D or another state/federal law applies. Mandatory federal/state testing and certain position-specific requirements remain exceptions.

Key employer note

In New York, do not assume that because a marijuana test is technically available it is legally appropriate for the employment situation.

Need the detailed law summary? Use the interactive map above for the fuller New York workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

North Carolina

EMPLOYER DRUG TESTING AT A GLANCE

North Carolina Employment Drug Testing

Employment testing

Allowed, but North Carolina has a Controlled Substance Examination Regulation Act that governs many workplace drug tests.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, and other testing can generally be conducted when statutory procedures are followed.

Urine

Yes.

Oral fluid / saliva

Yes. Oral fluid is among the specimen types recognized in North Carolina testing programs.

Rapid / instant vs. lab

Applicant initial screening may use an appropriate single-use/point-of-care device, but non-negative results require confirmation. Current-employee testing has stricter laboratory requirements.

Marijuana / THC

Generally may be included. North Carolina has no broad adult-use cannabis employment protection.

Key employer note

Distinguish applicant screening from current-employee testing because North Carolina’s laboratory rules differ.

Need the detailed law summary? Use the interactive map above for the fuller North Carolina workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

North Dakota

EMPLOYER DRUG TESTING AT A GLANCE

North Dakota Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, contracts, and any job-specific rules.

Pre-employment / random

Pre-employment and random testing are generally possible.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; confirm non-negative results before adverse action.

Marijuana / THC

Generally may be included. North Dakota’s medical-cannabis law does not create a broad right to workplace impairment.

Key employer note

Employers should pay the cost of employer-required medical examinations/tests where required by state law and apply the policy consistently.

Need the detailed law summary? Use the interactive map above for the fuller North Dakota workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Ohio

EMPLOYER DRUG TESTING AT A GLANCE

Ohio Employment Drug Testing

Employment testing

Generally permitted. Ohio has a voluntary drug-free workplace program that can impose additional procedures on participating employers.

Pre-employment / random

Pre-employment, reasonable-suspicion, post-accident, return-to-duty/follow-up, and—in higher program levels—random testing can be part of the voluntary program.

Urine

Yes. Urine is the core drug-testing specimen in the voluntary program.

Oral fluid / saliva

May be possible outside the voluntary-program structure; confirm whether it satisfies the requirements of any workers’ compensation program benefit being claimed.

Rapid / instant vs. lab

Use caution. Employers participating in the voluntary program should follow its laboratory testing and confirmation requirements rather than relying on an unconfirmed instant result.

Marijuana / THC

Generally may be included. Ohio employers retain significant policy rights regarding marijuana, though medical, disability, safety-sensitive, and federal issues should be reviewed.

Key employer note

If the employer wants Ohio workers’ compensation program benefits, build the testing process around that program’s exact requirements.

Need the detailed law summary? Use the interactive map above for the fuller Ohio workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Oklahoma

EMPLOYER DRUG TESTING AT A GLANCE

Oklahoma Employment Drug Testing

Employment testing

Allowed, but Oklahoma has a detailed Standards for Workplace Drug and Alcohol Testing Act.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, post-rehabilitation, and other testing are permitted when statutory policy, notice, and procedural requirements are met.

Urine

Yes.

Oral fluid / saliva

Yes. Saliva/oral-fluid testing is recognized when the statutory and laboratory rules are followed.

Rapid / instant vs. lab

FDA-approved point-of-care screening may be used, but non-negative results should be confirmed through the required laboratory process.

Marijuana / THC

Conditional. Oklahoma medical-marijuana law can protect licensed patients from action based solely on a positive marijuana result in some circumstances, with important exceptions including safety-sensitive work, impairment, possession/use at work, and federal requirements.

Key employer note

Oklahoma employers should align the written policy with both the workplace-testing statute and medical-marijuana employment provisions.

Need the detailed law summary? Use the interactive map above for the fuller Oklahoma workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Oregon

EMPLOYER DRUG TESTING AT A GLANCE

Oregon Employment Drug Testing

Employment testing

Generally permitted, but Oregon regulates clinical laboratory and on-site testing.

Pre-employment / random

Pre-employment and random testing can generally be conducted under a written policy unless a specific law or agreement restricts the program.

Urine

Yes.

Oral fluid / saliva

Generally possible as a body-fluid specimen when the testing process meets Oregon requirements.

Rapid / instant vs. lab

Permitted only when the on-site testing operation/device satisfies applicable registration and device rules. A positive used to deny employment or benefits should be confirmed by a clinical laboratory.

Marijuana / THC

Generally may be included. Oregon’s legalization of cannabis does not create a broad private-employer right to off-duty marijuana use, but medical, disability, local, and safety-sensitive issues can matter.

Key employer note

If using on-site tests, verify Oregon’s registration/device requirements and always confirm a non-negative before consequential action.

Need the detailed law summary? Use the interactive map above for the fuller Oregon workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Pennsylvania

EMPLOYER DRUG TESTING AT A GLANCE

Pennsylvania Employment Drug Testing

Employment testing

Generally permitted for private employers, but privacy, collective-bargaining, industry, and medical-marijuana rules can affect a program.

Pre-employment / random

Pre-employment testing is generally possible. Random testing is more defensible for safety-sensitive or otherwise strongly justified positions.

Urine

Yes.

Oral fluid / saliva

Generally possible in a properly designed non-DOT program.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Conditional. Pennsylvania’s Medical Marijuana Act contains employment protections for certified patients, while employers may still prohibit impairment at work and restrict certain safety-sensitive duties.

Key employer note

For medical-marijuana patients, review the job duties and statutory safety exceptions before acting solely on a THC result.

Need the detailed law summary? Use the interactive map above for the fuller Pennsylvania workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Rhode Island

EMPLOYER DRUG TESTING AT A GLANCE

Rhode Island Employment Drug Testing

Employment testing

Allowed, but Rhode Island has a restrictive workplace drug-testing statute.

Pre-employment / random

Applicant testing is generally tied to a conditional offer. Current-employee testing generally requires reasonable grounds; broad random testing is not generally permitted for ordinary private employment.

Urine

Yes.

Oral fluid / saliva

Other bodily-fluid testing may be possible when the program complies with Rhode Island law; confirm the current approved process before use.

Rapid / instant vs. lab

Point-of-care screening may be used in some settings, but a non-negative should be confirmed and statutory employee protections followed.

Marijuana / THC

Restricted/conditional. Rhode Island’s cannabis law protects lawful off-duty use in many circumstances and limits pre-employment restrictions for many non-exempt jobs, while safety-sensitive, federal, and other exceptions can apply.

Key employer note

Rhode Island also provides special protections/procedures following certain first positive employee tests, so do not treat every positive as an automatic termination event.

Need the detailed law summary? Use the interactive map above for the fuller Rhode Island workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

South Carolina

EMPLOYER DRUG TESTING AT A GLANCE

South Carolina Employment Drug Testing

Employment testing

Generally permitted. South Carolina has a voluntary drug-free workplace program.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, and other testing can generally be included in a written program.

Urine

Yes.

Oral fluid / saliva

Generally possible in appropriate non-DOT programs; state benefit/defense rules may specify accepted specimens and laboratory methods.

Rapid / instant vs. lab

Generally possible as an initial screen; use laboratory confirmation before adverse action and when relying on a statutory benefit or defense.

Marijuana / THC

Generally may be included. South Carolina has no broad adult-use cannabis employment protection.

Key employer note

If a result will affect unemployment, workers’ compensation, or another statutory issue, confirm that the test method satisfies the applicable rule.

Need the detailed law summary? Use the interactive map above for the fuller South Carolina workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

South Dakota

EMPLOYER DRUG TESTING AT A GLANCE

South Dakota Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, contracts, and any industry-specific requirements.

Pre-employment / random

Pre-employment and random testing are generally possible.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Generally may be included, but medical-cannabis protections and disability considerations should be reviewed for registered patients.

Key employer note

Use a written policy and consistent procedures and confirm non-negative screens before treating them as positive.

Need the detailed law summary? Use the interactive map above for the fuller South Dakota workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Tennessee

EMPLOYER DRUG TESTING AT A GLANCE

Tennessee Employment Drug Testing

Employment testing

Generally permitted. Tennessee has a voluntary drug-free workplace program with detailed procedures.

Pre-employment / random

Post-offer applicant, reasonable-suspicion, post-accident, return-to-duty/follow-up, and other testing can be used under the voluntary program; random testing is governed by the program’s rules.

Urine

Yes. Urine is the primary drug-testing specimen under the voluntary program.

Oral fluid / saliva

Do not assume oral fluid satisfies Tennessee’s voluntary program requirements; the program has historically restricted alternative specimens.

Rapid / instant vs. lab

The voluntary program relies on certified laboratory testing and does not treat an instant test as the final positive result.

Marijuana / THC

Generally may be included. Tennessee has no broad adult-use cannabis employment protection.

Key employer note

Employers seeking Tennessee drug-free workplace benefits should follow the program’s exact specimen, laboratory, policy, notice, and confirmation requirements.

Need the detailed law summary? Use the interactive map above for the fuller Tennessee workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Texas

EMPLOYER DRUG TESTING AT A GLANCE

Texas Employment Drug Testing

Employment testing

Generally permitted for private employers. Texas gives employers broad discretion to maintain a drug-testing policy, subject to contracts and specific industry rules.

Pre-employment / random

Pre-employment and random testing are generally possible under a clear, consistently applied policy.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; confirm non-negative results before significant employment action.

Marijuana / THC

Generally may be included. Texas has no broad statewide adult-use cannabis employment protection, although medical, disability, federal, and safety-sensitive issues should still be considered.

Key employer note

The employer’s written policy is especially important in Texas because there is no single comprehensive private-employer testing statute.

Need the detailed law summary? Use the interactive map above for the fuller Texas workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Utah

EMPLOYER DRUG TESTING AT A GLANCE

Utah Employment Drug Testing

Employment testing

Generally permitted. Utah has a voluntary drug-testing statute that provides a framework for private employers.

Pre-employment / random

Pre-employment, random, reasonable-suspicion, post-accident, and other testing can generally be conducted under a compliant written program.

Urine

Yes.

Oral fluid / saliva

Yes, saliva/oral-fluid testing can be used in appropriate non-DOT programs.

Rapid / instant vs. lab

Point-of-care screening may be used in some settings, but non-negative results should be confirmed before adverse action.

Marijuana / THC

Generally may be tested for, but Utah medical-cannabis law and job-specific rules can affect employment decisions. Federal and safety-sensitive requirements remain important.

Key employer note

Apply the program consistently across comparable employees and use a confirmation process for any non-negative screen.

Need the detailed law summary? Use the interactive map above for the fuller Utah workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Vermont

EMPLOYER DRUG TESTING AT A GLANCE

Vermont Employment Drug Testing

Employment testing

Allowed only within a comparatively restrictive statutory framework.

Pre-employment / random

Applicant testing is generally tied to a conditional offer and statutory procedures. Current-employee testing generally requires probable cause. Broad random testing is generally prohibited.

Urine

Yes.

Oral fluid / saliva

Do not assume oral fluid fits Vermont’s statutory workplace-testing process; verify current permitted specimen and laboratory requirements before use.

Rapid / instant vs. lab

Generally not a substitute for the certified-laboratory process required for employment testing under Vermont law.

Marijuana / THC

THC can be part of a lawful test, but the bigger limitation is when the employer is allowed to test at all. Cannabis status does not erase Vermont’s strict testing-trigger requirements.

Key employer note

Vermont employers should review the statutory testing trigger, EAP/referral obligations, laboratory process, and employee rights before testing.

Need the detailed law summary? Use the interactive map above for the fuller Vermont workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Virginia

EMPLOYER DRUG TESTING AT A GLANCE

Virginia Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, contracts, medical-cannabis rules, and any regulated-industry requirements.

Pre-employment / random

Pre-employment and random testing are generally possible unless a specific rule or agreement restricts the program.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Conditional. Virginia law provides certain protections related to lawful medical-cannabis products, while employers may still address impairment and may have broader authority in safety-sensitive or federally regulated roles.

Key employer note

Review medical-cannabis status, job duties, impairment evidence, and any federal requirements before acting solely on THC.

Need the detailed law summary? Use the interactive map above for the fuller Virginia workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Washington

EMPLOYER DRUG TESTING AT A GLANCE

Washington Employment Drug Testing

Employment testing

Generally permitted for non-cannabis drugs, subject to policy, contracts, and any job-specific rules.

Pre-employment / random

Pre-employment testing is generally possible, but Washington restricts how cannabis results may be used in initial hiring. Post-accident and reasonable-suspicion testing remain separate from the pre-employment cannabis rule.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; non-negative results should be confirmed before adverse action.

Marijuana / THC

Restricted at initial hiring. Washington generally prohibits discrimination in initial hiring based on lawful off-duty cannabis use or a test showing nonpsychoactive cannabis metabolites, with statutory exceptions. The rule does not eliminate post-accident, reasonable-suspicion, federal, or other controlled-substance testing.

Key employer note

For pre-employment programs, consider a panel/method that does not report nonpsychoactive cannabis metabolites unless the position qualifies for an exception.

Need the detailed law summary? Use the interactive map above for the fuller Washington workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

West Virginia

EMPLOYER DRUG TESTING AT A GLANCE

West Virginia Employment Drug Testing

Employment testing

Permitted, but West Virginia law and case decisions make the testing context important; special rules also apply to some public-works and regulated settings.

Pre-employment / random

Pre-employment testing is generally possible. Random/current-employee testing should be tied to a valid policy, job circumstances, and applicable case-law or statutory authority.

Urine

Yes.

Oral fluid / saliva

Generally possible in non-DOT settings unless a specific program requires a different specimen.

Rapid / instant vs. lab

Generally possible as an initial screen, but laboratory confirmation is recommended; special programs may require lab-based testing.

Marijuana / THC

Generally may be included where the testing itself is lawful, but medical-cannabis, disability, safety-sensitive, and job-specific requirements should be reviewed.

Key employer note

Because West Virginia’s framework is not a simple one-statute rule, employers should have current policy/testing triggers reviewed before broad random programs.

Need the detailed law summary? Use the interactive map above for the fuller West Virginia workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Wisconsin

EMPLOYER DRUG TESTING AT A GLANCE

Wisconsin Employment Drug Testing

Employment testing

Generally permitted for private employers, subject to policy, contracts, and any industry/public-works rules.

Pre-employment / random

Pre-employment and random testing are generally possible.

Urine

Yes.

Oral fluid / saliva

Generally possible.

Rapid / instant vs. lab

Generally possible as an initial screen; laboratory confirmation is recommended before adverse action.

Marijuana / THC

Generally may be included. Wisconsin has no broad adult-use cannabis employment protection.

Key employer note

Use a clear policy, consistent selection/testing criteria, and a reliable confirmation process.

Need the detailed law summary? Use the interactive map above for the fuller Wisconsin workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

Wyoming

EMPLOYER DRUG TESTING AT A GLANCE

Wyoming Employment Drug Testing

Employment testing

Generally permitted. Wyoming has a voluntary drug-free workplace program with defined testing procedures.

Pre-employment / random

Applicant, random, reasonable-suspicion, post-accident, and other testing can be conducted when program requirements are met.

Urine

Yes. Urine is the primary employee-testing specimen under the voluntary program.

Oral fluid / saliva

Alternative specimens such as oral fluid may be available in limited applicant-testing contexts; confirm before using them for current employees or program benefits.

Rapid / instant vs. lab

Limited. Point-of-care testing may be allowed for certain testing reasons, but post-accident testing and other program situations can require laboratory/DOT-style procedures.

Marijuana / THC

Generally may be included. Wyoming has no broad adult-use cannabis employment protection.

Key employer note

Match the specimen and test method to the reason for testing; Wyoming’s voluntary program can treat applicant, random, reasonable-suspicion, and post-accident testing differently.

Need the detailed law summary? Use the interactive map above for the fuller Wyoming workplace drug-testing information.

For marijuana-specific rules, use our Marijuana Laws by State resource.

What Employers Should Know About Workplace Drug Testing Laws

Workplace drug testing is not governed by one uniform rule across the United States. Federal rules apply to certain employers and safety-sensitive positions, while state and local laws can regulate who may be tested, when a test may occur, what specimen may be collected, how a result must be confirmed, what notice an employer must provide, and what consequences may follow a positive result. Employers operating in more than one state should therefore avoid using a single testing procedure without first checking the law that applies where each employee works.

Pre-Employment Drug Testing

Pre-employment testing is widely used, but the timing and procedure can differ by state. Some states require a conditional offer before an applicant may be tested, some require written notice, and some require that applicants for the same job classification be treated consistently. Marijuana creates an additional issue because a growing number of jurisdictions restrict pre-employment cannabis testing or restrict an employer’s ability to reject an applicant solely because a test detects marijuana metabolites.

Random Drug Testing

Random testing is not equally broad in every state. Some states permit private employers to conduct random testing under a clearly written policy, while others limit random testing to safety-sensitive occupations, federally regulated employees, employees participating in certain rehabilitation programs, or other specifically defined groups. Employers should confirm that the employee population placed in a random pool is legally eligible for random testing and that the selection process is genuinely random and consistently administered.

Reasonable-Suspicion and Post-Accident Testing

Reasonable-suspicion testing generally depends on specific, contemporaneous observations that create a legitimate basis to believe an employee may be impaired or has violated the employer’s policy. Supervisor training and written documentation can be especially important. Post-accident testing also requires care: an accident does not always create an unlimited right to test every employee involved. State law, the facts of the incident, workers’ compensation rules, OSHA considerations, and—when applicable—DOT regulations may all affect the decision.

Urine, Oral Fluid, Hair and Other Specimen Types

Urine remains the most established workplace drug-testing specimen and is supported by laboratory infrastructure nationwide. Oral fluid has become increasingly attractive because the collection is directly observed and can reduce opportunities for specimen substitution. However, a state law or voluntary drug-free workplace program may specify particular specimen types or laboratory procedures. Hair and other alternative specimens can also be restricted by a state program even when they are commercially available. The employer should choose the specimen method only after confirming that it fits the applicable legal and program requirements.

Rapid or Instant Testing vs. Laboratory Testing

A rapid or point-of-care screen is not the same as a confirmed laboratory positive. Some states allow rapid screening for certain employment tests, while others restrict point-of-care testing or require testing to be performed through a licensed or certified laboratory. Even where an initial rapid screen is permitted, a non-negative result should generally be confirmed using the legally required laboratory method before the employer treats the result as a final positive or takes significant employment action.

Marijuana and THC Testing

Marijuana is now one of the most state-specific parts of workplace drug testing. The questions an employer must ask are not only “Can we test for THC?” but also “Can we use this result to make an employment decision?” A state may allow testing while protecting lawful off-duty cannabis use, registered medical-cannabis patients, or applicants whose test shows only nonpsychoactive metabolites. Many laws also contain exceptions for safety-sensitive positions, impairment at work, federally regulated employees, federal contracts or grants, driving positions, and other specifically identified jobs. Employers should review marijuana rules separately from the rest of their drug-testing policy.

DOT Testing Is Different

Employers with DOT-regulated safety-sensitive employees must follow the federal testing rules that apply to the specific DOT agency and 49 CFR Part 40. DOT drug testing is not the same as an employer’s non-DOT program. Under Part 40, urine and oral-fluid specimens are authorized specimen types, but the drug test must be screened and confirmed at an HHS-certified laboratory; point-of-collection urine tests, point-of-collection oral-fluid drug tests, hair tests, and instant tests are not authorized for DOT testing. Employers that maintain both DOT and non-DOT programs should keep the policies, testing authorities, panels, forms, and procedures clearly separated.

Written Policies, Confirmation and Consistent Administration

A written drug and alcohol policy should identify who is subject to testing, the circumstances that trigger a test, the substances included, specimen and laboratory procedures, how results are reviewed, and the consequences of a policy violation. State-law requirements change, and local ordinances can add another layer of protection. Employers should periodically review their policy, particularly when expanding into a new state, changing specimen types, adding rapid testing, changing marijuana policy, or moving employees into safety-sensitive positions.

Marijuana Rules Need a Separate Review

Cannabis laws can change whether an employer may screen for THC, whether a positive result may be used in hiring or discipline, and which safety-sensitive or federally regulated positions are exempt from state protections.

View Marijuana Laws by State

Last reviewed: September 1, 2026

Authoritative Resources

State-specific statutes and citations should be reviewed together with the detailed information in the interactive map above. The following federal resources are useful starting points for employers:

Important: This quick reference is for general informational purposes and is not legal advice. Drug-testing and cannabis laws can change, and local ordinances, collective-bargaining agreements, workers’ compensation programs, industry rules, federal contracts, and safety-sensitive requirements may create additional obligations. Employers should verify current law and obtain qualified legal guidance before changing a testing policy or taking adverse employment action.

Area of focus	Status	Comments
Setting/circumstance	Defined	The following types of testing are required with conditions: pre-employment, periodic, follow-up and for cause. Return-to-duty, post-accident and random permitted, but not required.
Drugs tested (pan	Defined	Amphetamines, cannabinoids, phencyclidine, methadone, opiates, cocaine, methaqualone, barbiturates, benzodiazepines, propoxyphene, or a metabolite of any of these substances.
Specimens permitted	Defined	Broadly defined: tissue, blood, breath, urine, or other product of the human body capable of revealing the presence of drugs or their metabolites or of alcohol.
POCT screening devices	Prohibited	Permitted outside this voluntary law but not by companies that wish to qualify for the WC discount.
Alcohol testing	Permitted	Must comply with U.S. DOT standards; positive equals .04 for safety-sensitive jobs, .08 for all other jobs.
EAP	See Comments	Employers must provide either an EAP or information about how to access EAP-type services.
Certified laboratory	Required	SAMHSA- or CAP-certified labs only.
WC premium discount	Permitted	When compliant with law qualifies for 5% discount.
WC claim denial or reduction	Permitted	Refer to ALA Code 25-5-51 (2006). Requires compliance with 49 CFR part 40 drug and alcohol testing regulations.
Unemployment denial	Permitted	Refer to ALA Code 25-4-78 (Supp. 2005). Requires compliance with 49 CFR part 40 drug and alcohol testing regulations or equivalent standards.

Area of focus	Status	Comments
Setting/circumstance	Defined	Permitted in all circumstances. However, if testing is conducted, it must be done among all employees, including management. As well, pre-employment testing must be post-offer. Random testing is limited to safety-sensitive positions per case law. Post-accident is limited to those believed to have contributed to causing the accident.
Drugs tested (panel)	Defined	Drugs with SAMHSA-established cut-off levels at a minimum. See Alaska Statutes Title 11, Chapter 71 for a list of controlled substances included in the state’s definition of “drugs.” Notice of other drugs to be tested for and their cut-off levels must be given to donors in advance.
Specimens permitted	Defined	Urine or breath only.
POCT screening devices	Permitted	FDA-cleared devices only; many conditions apply; positives must be confirmed with GC-MS; a written record of the result must be provided to the individual.
Alcohol testing	Permitted	Permitted for employees; not permitted for applicants.
EAP	Not Mentioned
Certified laboratory	Required	When not using on-site kits lab must be certified by SAMHSA, CAP, American Assn. of Clinical Chemists.
WC premium discount	Not Mentioned
WC claim denial or reduction	Permitted	Refer to Alaska Statute §23.30.235.
Unemployment denial	Permitted	Refer to Alaska Statutes §23.20.379. Requires compliance with voluntary law.

Area of focus	Status	Comments
Setting/circumstance	Defined	Permitted in all circumstances. If testing is conducted, it must be done among all employees, including management. Post-accident testing is only permitted immediately after the event and of those suspected of causing the accident.
Drugs tested (panel)	Defined	Any substance considered unlawful under the schedules of the controlled substances section of the Comprehensive Drug Abuse Prevention and Control Act of 1970 (P.L. 91-513; 84 Stat. 1247; 21 United States Code section 812) or the metabolite of the substance.
Specimens permitted	Defined	Urine, blood, hair, saliva, breath, or other body specimens.
POCT screening devices	See Comments	Even though the law expressly requires drug testing to be done in a laboratory, it contains a clause stating that nothing in the statute “shall be construed to encourage, discourage, restrict, limit, prohibit or require on-site drug testing or alcohol impairment testing.” (23-493.04 E)
Alcohol testing	Permitted	Permitted; .08 or above is positive by a “scientifically accepted method.”
EAP	Not Mentioned
Certified laboratory	Required	SAMHSA, CAP or Arizona Dept. of Health Services.
WC premium discount	Not Mentioned
WC claim denial or reduction	Prohibited	Arizona Revised Statutes Annotated §23-1021 was ruled unconstitutional by the AZ Supreme Court in Grammatico v. The Industrial Commission.
Unemployment denial	Permitted	Refer to Arizona Revised Statutes §23-619.01; requires employer to conduct drug and alcohol testing in compliance with the guidelines of the voluntary law (Title 23, chapter 2, article 14).

Area of focus	Status	Comments
Setting/circumstance	Defined	Permitted in all circumstances. The following is required: -Applicant testing for drugs is required; alcohol is optional. -Reasonable suspicion within 24 hours of report/observation of suspicious behavior. -Post-accident when injury results per DOT procedures: 8 h/alcohol and 32 h/drugs. -Periodic exam if part of routine medical exam per company policy or when such exams are required of all workers in a particular class of job. -Follow-up when rehab is offered to policy violator; permitted but not required for workers who voluntarily enter rehab; testing must occur at least once a year for a 2-year period.
Drugs tested (panel)	Defined	SAMHSA panel.
Specimens permitted	Defined	Specimen means “tissue, fluid, or a product of the human body capable of revealing the presence of alcohol, drugs or their metabolites.”
POCT screening devices	Prohibited
Alcohol testing	Required	Specific requirements for alcohol testing are included in the statute.
EAP	Not Required	Mentioned, but specifically not required. Must provide sampling of info on available EAPs in area.
Certified laboratory	Required	Licensed by state and in compliance with SAMHSA, CAP, or other state-recognized certification.
WC premium discount	Permitted	5%.
WC claim denial or reduction	Permitted	Refer to Arkansas Code Annotated § 11-9-102(4)(B)(iv).
Unemployment denial	Permitted	Refer to Arkansas Code Annotated § 11-10-514(b). Requires drug or alcohol test to be conducted in accordance with DOT regulations and the employer’s written policy.

Area of focus	Status	Comments
Setting/circumstance	See Comments	Definition affected by case law and stringent privacy law. Applicant testing for safety-sensitive occupations is upheld by case law; probably permitted for others, but not in case law. Post-accident only if drug abuse is suspected and best limited to safety-sensitive workers. Periodic exam only if it is part of a pre-employment exam. Return-to-duty is also restricted to safety-sensitive positions. Random is not recommended, no matter what industry. All other circumstances are restricted.
Drugs tested (panel)	Not Mentioned
Specimens permitted	Not Mentioned
POCT screening devices	Restricted	Dept. of Health does not actively seek to restrict on-site tests or POCT. Cal. Business & Professions Code §1206 requires all tests to take place at a certified laboratory.
Alcohol testing	Restricted	Same qualifications apply as for drug testing.
EAP	Not mentioned
Certified laboratory	See Comments	Strongly encouraged given the litigious environment in the state. Refer to Cal. Business & Professions Code §1206 for requirement of who can conduct such a test.
WC premium discount	Not Mentioned
WC claim denial or reduction	Permitted	Refer to California Labor Code §3600.
Unemployment denial	Permitted	Refer to Unemployment Insurance Code §1256.4.