District of Columbia drug testing laws for employers: pre-employment testing rules (2026)

The District of Columbia lets employers drug test job applicants, with one timing rule: under D.C. Code § 32-931, an employer "may only test a prospective employee for marijuana use after a conditional offer of employment has been extended," unless another law requires otherwise, and it may still deny the position on a positive marijuana result. As of October 2026, the broader Cannabis Employment Protections Amendment Act of 2022, which would bar refusing to hire most applicants for off-duty cannabis use or a metabolite-only positive, is marked "Not Funded" in the D.C. Code and is not in force. Federal agencies are outside the District's rule, and DOT-regulated jobs follow federal testing.

What does D.C. law say about pre-employment drug testing?

The District's only general testing statute is the Prohibition of Pre-Employment Marijuana Testing law, D.C. Code § 32-931 (D.C. Law 21-14, effective July 22, 2015). It does three things:

1. Sets the timing. "An employer may only test a prospective employee for marijuana use after a conditional offer of employment has been extended, unless otherwise required by law." A prospective employee is "any individual applying for employment with an employer."
2. Leaves the decision to the employer. Nothing in the chapter affects employees' compliance with workplace drug policies, requires an employer to permit or accommodate marijuana "in the workplace or at any time during employment," interferes with federal employment contracts, or prevents "the employer from denying a position based on a positive test for marijuana."
3. Reaches almost every employer. "Employer" has the meaning in § 32-1101(6), the District's occupational safety law, which covers any person having control of a place of employment or of any employee, including the District government, and excludes "the United States government or its agencies." There is no minimum number of employees.

The section is about marijuana. It does not address tests for other drugs, but almost every standard workplace panel includes THC, so the simplest compliant approach is to run the whole panel after the conditional offer. That lines up with the District's criminal history rule, which also waits for the conditional offer; see D.C.'s ban-the-box law.

Is the Cannabis Employment Protections Amendment Act in force?

Not its operative parts. D.C. Law 24-190, the Cannabis Employment Protections Amendment Act of 2022, created Chapter 9B of Title 32. Section 401 of the law says sections 102 to 107 and Titles II and III "shall apply upon the date of inclusion of their fiscal effect in an approved budget and financial plan or 365 days after the Mayor approves this act, whichever is later." As of October 2026, the Code shows:

• § 32-951.01, the definitions, in the Code without a funding note;
• § 32-951.02 (employment protections) through § 32-951.08 (rulemaking), each marked "Not Funded," with the note that the provision "has not been implemented"; and
• the related Human Rights Act subsection on medical marijuana used to treat a disability, § 2-1402.11(b-1), also marked "Not Funded."

So the rule in force for private employers today is still § 32-931. Our D.C. hiring guide reaches the same conclusion.

What would change if the 2022 protections are funded?

Planning for it now is cheap. As enacted, section 102 of the law would bar an employer from refusing to hire, terminating, suspending, failing to promote, demoting or penalizing someone based on their use of cannabis, their status as a medical cannabis program patient (in D.C. or their home state), or "the presence of cannabinoid metabolites" in an employer-required test "without additional factors indicating impairment." "Employee" includes anyone "seeking employment," so applicants would be covered. The exceptions:

• positions the employer designates as safety sensitive, defined in § 32-951.01(8) as jobs where performing routine duties under the influence would likely cause "actual, immediate, and serious bodily injury or loss of life," with examples such as security and weapons work, regular operation of vehicles or heavy machinery, active construction sites, work near power or gas lines, hazardous materials, custodial care, and administering medications or other credentialed medical treatment;
• actions required by federal statute, regulation, contract or funding agreement;
• use, possession or similar conduct at the workplace or during work hours; and
• impairment shown by "specific articulable symptoms" while working.

Section 104 would require employers to tell employees their rights, whether their position is designated safety sensitive, and the employer's testing protocols, within 60 days after the provision applies, every year after that, and "Upon hire of a new employee," with a template from the Office of Human Rights. Complaints would go to the Office of Human Rights within one year. If you hire in the District, decide now which roles you would designate safety sensitive and why, so the designation exists before you need it.

Does D.C. law protect marijuana use outside work?

The District allows adults 21 or older to possess, use, purchase or transport two ounces or less of marijuana and grow a limited number of plants at home under D.C. Code § 48-904.01(a)(1), and runs a medical marijuana program under Chapter 16B of Title 7. The same section says nothing in it requires "any employer" to permit or accommodate marijuana in the workplace or affects an employer's ability "to establish and enforce policies restricting the use of marijuana by employees." Until the 2022 protections are funded, D.C. law does not stop a private employer from acting on a positive marijuana test taken after the conditional offer.

Which federal rules apply in D.C.?

• Federal agencies are excluded from § 32-931 through the § 32-1101(6) definition, and § 32-931(b)(3) says the chapter does not "Interfere with federal employment contracts."
• DOT testing for commercial drivers and other safety-sensitive transportation roles follows 49 CFR Part 40, with a verified negative before the first safety-sensitive function (49 CFR 382.301). Section 32-931(a) does not override testing that is "otherwise required by law."
• Rescheduling. The April 28, 2026 final order moved FDA-approved and state-medical-license marijuana to Schedule III, but DOT's Part 40 Q&A, updated May 15, 2026, says a medical marijuana card or dispensary record still cannot turn a marijuana positive into a verified negative.
• Federal contractors follow the FAR Drug-Free Workplace clause.
• The ADA: see pre-employment medical exams under the ADA before asking about prescriptions after a positive.

What should staffing agencies placing workers in D.C. do?

• Make the assignment offer conditional before collection. Section 32-931 has no size threshold, so it applies to an agency with one employee in the District.
• Nurse staffing agencies must document that nursing personnel and aides "have satisfactorily completed all drug screening and all background checks required by law ... or requested by the client" before placement (D.C. Code § 44-1051.15(10)); see D.C. staffing agency licensing.
• Agree on safety-sensitive roles now. If the 2022 protections are funded, the designation will belong to the employer; settle with each client which assignments would be designated.
• Check the work location. Many D.C.-area placements are in Maryland or Virginia, which have their own rules: see Maryland drug testing laws and Virginia drug testing laws.

For screening calls and the rest of onboarding, see D.C.'s recording consent law, D.C. background check laws and D.C. E-Verify requirements.

District of Columbia drug testing laws at a glance

A checklist before you test a candidate in D.C.

1. Move every panel that includes THC to after the conditional offer, and say so in the offer letter.
2. Sequence it with the criminal history check, which also waits for the conditional offer.
3. List the roles you would designate safety sensitive under § 32-951.01(8), with the reason for each.
4. Keep DOT and federal-contract roles on their federal programs.
5. Check the D.C. Code funding notes on Chapter 9B at least at each budget cycle.
6. Draft from the drug testing policy template and compare states in drug testing laws in hiring.