• Maryland
  • State law

Drug Testing Laws in Maryland

Short answer

Maryland's rule is a disclosure rule, and it runs on a 30-day clock. Your specimen must go to a laboratory holding a Maryland permit, or to an out-of-state laboratory that is certified or otherwise approved — and you must be told that laboratory's name and address at the time of testing. After a confirmed positive, the employer has 30 days from the date the test was performed to hand you four things: a copy of the laboratory result, a copy of its written policy on controlled dangerous substances or alcohol, written notice of any intended disciplinary action, and a statement of your independent verification rights. Notably the duty runs to employees, contractors and other persons tested, not only to employees.

Last verified 18 Aug 2026

This page describes Maryland law only. If your role is federally regulated, federal rules apply on top of anything here and generally govern the test itself. This is general information, not legal advice.

Private employers

State law (Maryland): The specimen must be tested by a laboratory that holds a permit under the subtitle, or that is located outside the State and is certified or otherwise approved Source 1State legislatureMd. Code, Health-General §17-214 — job-related drug and alcohol testing — checked 18 Aug 2026. A Maryland employer cannot simply use any laboratory it likes.

State law (Maryland): At the time of testing, the employer must inform the person of the name and address of the laboratory that will test the specimen Source 1State legislatureMd. Code, Health-General §17-214 — job-related drug and alcohol testing — checked 18 Aug 2026. That is a small requirement with a practical use: it tells you, before any result exists, who to ask about the analysis.

Employer policy: Beyond the laboratory and disclosure duties, this section does not dictate panels, cutoffs or when testing may occur. Those come from the employer's written policy — which the section then requires the employer to give you a copy of after a positive Source 1State legislatureMd. Code, Health-General §17-214 — job-related drug and alcohol testing — checked 18 Aug 2026.

Pre-employment testing

State law (Maryland): Worth noticing who the duty is owed to. The disclosure package must be delivered to the employee, contractor, or other person tested Source 1State legislatureMd. Code, Health-General §17-214 — job-related drug and alcohol testing — checked 18 Aug 2026 — wording broad enough to cover people an employment-only statute would miss.

Employer policy: If you are a contractor tested by a Maryland client, that is unusual and useful: most state testing statutes on this hub are framed around employees and applicants only.

Notice requirements

State law (Maryland): After a confirmed positive, four items must be provided: a copy of the laboratory test indicating the results; a copy of the employer's written policy on the use or abuse of controlled dangerous substances or alcohol; written notice of any intended disciplinary action; and a statement or copy of the provisions setting out independent verification rights Source 1State legislatureMd. Code, Health-General §17-214 — job-related drug and alcohol testing — checked 18 Aug 2026.

State law (Maryland): The deadline is 30 days from the date the test was performed Source 1State legislatureMd. Code, Health-General §17-214 — job-related drug and alcohol testing — checked 18 Aug 2026 — measured from the test, not from when the employer received the report or decided what to do. An employer that sits on a result for three weeks has spent most of its own clock.

Employer policy: If you were told about a positive but never given the laboratory report or the written policy, that package is what the section entitles you to, and asking for it in writing is the straightforward step Source 1State legislatureMd. Code, Health-General §17-214 — job-related drug and alcohol testing — checked 18 Aug 2026.

How federal rules interact

Federal (DOT): A DOT-regulated test is governed by the federal rulebook, which has its own disclosure and split-specimen machinery rather than Maryland's 30-day package.

What this page does not cover, and we would rather name it: Maryland's rules on when testing may occur, random testing, cannabis and employment, and the detail of the independent verification provision the section refers to. We read §17-214 itself; we have not read the cross-referenced subsection or Maryland's cannabis employment law, so nothing is asserted about them.

Not yet verified for Maryland

We publish a topic only once it has been checked against Maryland's own statutes or agency guidance. These are still in research, and their absence above does not mean there is no rule:

  • Random testing
  • Cannabis and employment
  • Medical cannabis
  • Safety-sensitive roles

For these, go to the state's own labour agency rather than a general article.

Official sources

Every factual claim above is drawn from these sources. Each was opened and checked on the date shown. Where a rule differs between agencies, the source that governs is named in the text.

  1. State legislature · Md. Code, Health-Gen. §17-214

    Md. Code, Health-General §17-214 — job-related drug and alcohol testing

    Checked 18 Aug 2026
    View official source ↗ (opens in a new tab)