Drug Testing Policy

A drug testing policy is not the same as a drug and alcohol policy. The drug and alcohol policy sets the prohibition standards; the drug testing policy defines exactly how those standards are verified, contested, and enforced. This page gives you a complete, editable drug testing policy template that covers every testing type, the chain of custody procedures that make results defensible, the Medical Review Officer process that prevents wrongful termination, and the state-specific cannabis provisions that have made this area one of the most legally complex in HR. Getting the procedural details right is the difference between a testing program that holds up in court and one that unravels when challenged.

What Is a Drug Testing Policy?

A drug testing policy is a formal document that defines the specific procedures by which an organization tests employees and applicants for drug and alcohol use. It covers testing triggers (pre-employment, random, reasonable suspicion, post-accident), testing methods, chain of custody procedures, the Medical Review Officer review process, the employee's right to contest results, and the consequences of confirmed positive tests or test refusals. It operates as the procedural companion to the organization's broader drug and alcohol policy.

Without documented testing procedures, results are legally vulnerable. An employer terminated an employee based on a positive drug test result, but the employee's attorney demonstrated that the collection site had not followed chain of custody procedures and that no MRO review had occurred. The court ruled that the employer could not prove the sample was not contaminated or that the employee's prescription medication wasn't the cause of the positive result. The termination was reversed. A documented, followed drug testing policy prevents this outcome.

What a Drug Testing Policy Should Include

A legally defensible drug testing policy requires precision at every procedural step. Required components include:

• Scope and covered positions: Identifies which employees and applicants are subject to which types of testing.
• Types of testing and triggers: Defines pre-employment, random, reasonable suspicion, post-accident, return-to-duty, and follow-up testing with specific trigger criteria for each.
• Substances tested: Lists the specific drugs and alcohol included in the standard panel and any position-specific extensions.
• Testing methods: Describes the specimen type (urine, hair, oral fluid, breath) and the certified collection process.
• Chain of custody procedures: Specifies the documentation and handling requirements that protect the integrity of the sample from collection to laboratory analysis.
• Medical Review Officer (MRO) review: Describes the MRO's role in reviewing positive results for legitimate medical explanations before results are reported to the employer.
• Employee contest rights: Defines the split specimen or retesting process available to employees who dispute a positive result.
• Cannabis and prescription medication provisions: Addresses state-specific cannabis protections and the process for managing prescription medication disclosures.
• Confidentiality: Confirms that test results are treated as confidential medical information accessible only to authorized personnel.
• Consequences: References the drug and alcohol policy's consequence framework and confirms the handling of refusals.
• DOT-specific provisions: For regulated employers, confirms alignment with DOT 49 CFR Part 40 procedures.

Drug Testing Policy Template

Drug Testing Policy

Effective Date: [DATE]

Approved by: [NAME / TITLE]

Policy Owner: [HR DEPARTMENT / TITLE]

Review Date: [DATE]

Version: [1.0]

Policy Brief and Purpose

[COMPANY NAME] maintains a drug testing policy to verify compliance with the drug and alcohol standards established in [COMPANY NAME]'s Drug and Alcohol Policy. This drug testing policy establishes the standards and procedures governing how drug and alcohol testing is conducted, how results are reviewed, and how employees may contest results. The goal is to ensure that testing is conducted fairly, consistently, and in a manner that produces legally defensible results.

Scope

This policy applies to all applicants for employment in covered positions and all current employees of [COMPANY NAME] in covered positions. [List specific roles or positions subject to testing, or confirm that all positions are covered.] This policy applies to [DOT-regulated employees per 49 CFR Part 40 / non-DOT employees / both].

Policy Elements

1. Types of Testing

Pre-Employment Testing

All applicants who receive a conditional offer of employment in covered positions must complete a drug test before beginning work. Testing must be completed within [X business days] of receiving the testing authorization. A confirmed positive result or refusal to test will result in the withdrawal of the employment offer. Pre-employment testing does not create an obligation to hire.

Random Testing

Employees in covered positions are subject to unannounced random drug and alcohol testing on a [monthly / quarterly / annual] basis, with a selection rate of [X]% per period. Selection is conducted using a truly random process administered by [THIRD-PARTY ADMINISTRATOR]. Employees selected for random testing must report to the collection site within [X hours] of notification. Failure to report within the stated window is treated as a refusal to test.

Reasonable Suspicion Testing

A manager may require an employee to submit to drug or alcohol testing when there are specific, observable, articulable reasons to believe the employee is impaired. Reasonable suspicion must be based on direct observation — not rumors, reports from coworkers, or general concerns. Required observations include at least two of the following: slurred speech, unsteady gait, odor of alcohol or drugs, erratic behavior, or other physical signs consistent with impairment. Before initiating a reasonable suspicion test, the observing manager must:

• Document specific observations in writing.
• Consult with [HR / a second supervisor] and obtain approval.
• Arrange transportation for the employee to the collection site — the employee must not drive themselves.

Post-Accident Testing

Post-accident testing is required for any employee involved in a workplace accident that results in:

• Injury to any person requiring treatment beyond first aid.
• Damage to property or equipment above $[THRESHOLD].
• A vehicle accident in which any vehicle requires towing.
• A near-miss event involving safety-sensitive equipment where injury was narrowly avoided.

Post-accident testing must be initiated within [2 hours] for alcohol testing and within [8 hours] for drug testing from the time of the accident. If the window passes, document why testing was not completed in the required timeframe.

Return-to-Duty Testing

Employees who have violated the drug and alcohol policy and are being considered for return to work following treatment must pass a return-to-duty test before resuming work. Return-to-duty testing must be directly observed.

Follow-Up Testing

Employees who return to work following a substance abuse treatment program are subject to unannounced follow-up testing for a minimum of [12 months], at a frequency determined by the Substance Abuse Professional (SAP). Follow-up tests may be directly observed.

2. Substances Tested

Standard panel testing includes the following substances:

• Marijuana (THC metabolites)
• Cocaine (COC)
• Opiates / Opioids (including codeine, morphine, hydrocodone, oxycodone, heroin)
• Amphetamines (including methamphetamine, MDMA)
• Phencyclidine (PCP)

For positions [list], the standard panel is extended to include: [benzodiazepines, barbiturates, methadone, propoxyphene, etc.]

Alcohol testing is conducted by Breath Alcohol Technician (BAT) using a federally approved evidentiary breath testing device. An alcohol concentration of [0.04 / 0.02] or above constitutes a positive test result for [safety-sensitive / all covered] employees.

3. Testing Methods and Collection Procedures

All urine specimen collections are conducted at [CERTIFIED COLLECTION SITE — NAME / NETWORK]. Collections follow strict chain of custody procedures:

• Specimen is collected in a private collection facility with temperature verification.
• Collector completes a Federal Custody and Control Form (CCF) documenting the entire collection process.
• Specimen is sealed in a tamper-evident container in the employee's presence.
• Sealed specimen is transported to a SAMHSA-certified laboratory for analysis.
• The CCF accompanies the specimen at every step.

Employees must present valid government-issued photo ID at the collection site.

4. Medical Review Officer (MRO) Review

All non-negative results from the laboratory are forwarded to a certified Medical Review Officer before being reported to [COMPANY NAME] as positive. The MRO will:

• Review the laboratory result and the employee's prescription medication history.
• Contact the employee directly to determine whether a legitimate medical explanation exists for the positive result.
• Report the result as "negative" if a valid prescription exists for the detected substance and the use is consistent with the prescription.
• Report the result as "positive" only after ruling out all legitimate medical explanations.

[COMPANY NAME] will not receive notification of a result until MRO review is complete. HR may not initiate discipline based on a preliminary positive result.

5. Employee Contest Rights

Employees who receive a confirmed positive result through MRO review have the right to request a split specimen test within [72 hours] of notification. The split specimen was collected simultaneously with the primary specimen and is stored at the laboratory. A negative split specimen result will be reported as an overall negative result. The cost of the split specimen test is [borne by the employee / reimbursed by the company if the result is negative].

6. Cannabis Provisions

[MAP TO STATE LAW — use one of the following as applicable:]

[OPTION A — Safety-sensitive only / Federal contractor]: Cannabis testing is included in the standard panel for all covered positions. A confirmed positive cannabis test result is treated as a violation of the Drug and Alcohol Policy regardless of state law on recreational or medical cannabis use. [COMPANY NAME] is a [federal contractor / DOT-regulated employer] and must comply with federal drug-free workplace requirements.

[OPTION B — State employment protections apply, non-safety-sensitive employees]: For non-safety-sensitive employees in states that prohibit adverse employment action based solely on lawful off-duty cannabis use, [COMPANY NAME] will not report a positive cannabis result to HR as grounds for disciplinary action absent observable impairment at work. Safety-sensitive employees in the same states remain subject to standard consequence provisions.

7. Confidentiality

All drug test results and substance use disclosures are confidential medical information under the ADA. Results will not be disclosed to unauthorized personnel, coworkers, or managers beyond what is necessary to administer this policy. Results are stored in a separate confidential medical file, not in the employee's general HR file.

Employee Responsibilities

• Report to the designated collection site within the required timeframe when notified of a required test.
• Present valid government-issued photo ID at the collection site.
• Disclose prescription medications to the MRO during the review process.
• Notify HR within [X hours] if a required test cannot be completed within the stated window.
• Contest results through the designated split specimen process, not through the grievance process.

Manager and HR Responsibilities

• Obtain two-supervisor sign-off and HR approval before initiating reasonable suspicion testing.
• Arrange transportation to and from the collection site for reasonable suspicion and post-accident tests.
• Never communicate a test result to anyone beyond authorized HR personnel.
• Wait for MRO review completion before initiating any discipline.
• Document every step of the reasonable suspicion or post-accident testing initiation process.

Disciplinary Action

Consequences for confirmed positive test results, refusals to test, and tampering with specimens are defined in [COMPANY NAME]'s Drug and Alcohol Policy. All disciplinary actions are initiated by HR following MRO confirmation of results.

Disclaimer

This template is a starting point and does not constitute legal advice. Drug testing law is complex and varies significantly by state and industry. For DOT-regulated employers, this policy must align precisely with 49 CFR Part 40. Consult an employment attorney before finalizing.

How to Customize This Drug Testing Policy Template for Your Company

Start with your testing panel. A five-panel urine test is standard, but healthcare, construction, and transportation industries frequently use expanded panels that include opioids, benzodiazepines, and synthetic drugs. If you're a DOT-regulated employer, you have no discretion on the testing panel or procedures — DOT's 49 CFR Part 40 governs everything and must be followed precisely. For multi-state employers, map your cannabis provisions state by state before publishing. Arizona, New Jersey, New York, and Minnesota are among the states with explicit employment protections for cannabis users that require policy modifications. Add specific collection site names and contact information so employees know exactly where to go when testing is required.

Drug Testing Policy Best Practices

• Partner with a dedicated third-party administrator for your random selection program. In-house selection programs are inherently susceptible to supervisor influence and are regularly challenged in litigation.
• Confirm your collection site is SAMHSA-certified annually. Certification lapses happen and can invalidate results processed during the lapsed period.
• Train your HR team on the MRO review process so they don't initiate discipline before MRO confirmation. This is one of the most common procedural errors in drug testing programs.
• Document every post-accident testing initiation in detail — time of accident, time of notification, time of test initiation, and the chain of custody. Post-accident test results that can't be connected to a documented incident timeline are routinely challenged.
• According to Quest Diagnostics' Drug Testing Index, positivity rates for workforce drug tests have risen consistently over the past decade, with opioids remaining the highest-risk category in healthcare and manufacturing settings.
• Keep a copy of every CCF and MRO result report for a minimum of [5 years / DOT-required period], stored separately from personnel files.

Common Mistakes in Drug Testing Policies

• No MRO review requirement. Acting on a laboratory positive without MRO review regularly results in wrongful termination when the employee had a valid prescription.
• Inadequate reasonable suspicion documentation standard. "Supervisor noticed something seemed off" is not a legally defensible reasonable suspicion trigger. Two-supervisor sign-off with written, observable evidence is the minimum defensible standard.
• Missing post-accident initiation windows. DOT and most state testing frameworks specify tight windows for post-accident testing. A policy that doesn't specify the initiation timeframe creates enforcement inconsistency and potentially invalid results.
• Cannabis provisions that ignore state law. Terminating an employee in a protected-use state solely based on a positive cannabis screen is increasingly resulting in wrongful termination verdicts.
• No contest rights procedure. Employees who have no documented way to contest results are more likely to file EEOC charges or lawsuits. A split specimen process documented in the policy creates a clear channel that reduces litigation.

Frequently Asked Questions About Drug Testing Policies

Q: What should a drug testing policy include?
A: A complete drug testing policy covers testing types and their specific triggers, the substances included in the testing panel, collection and chain of custody procedures, MRO review requirements, employee contest rights, cannabis-specific provisions aligned with state law, confidentiality protections, and the consequences for positive results and refusals.

Q: Is a drug testing policy legally required?
A: DOT-regulated employers must maintain specific drug testing programs under 49 CFR Part 40 — these are not optional. Federal contractors subject to the Drug-Free Workplace Act must implement drug-free workplace programs. Most private employers are not legally required to have a written drug testing policy, but documenting the procedures is essential for the results to be defensible.

Q: How often should a drug testing policy be updated?
A: Review annually, and immediately when state drug testing or cannabis employment protection laws change in any state where you have employees. The cannabis provisions section requires the most frequent review as state law continues to evolve.

Q: What is the role of the Medical Review Officer?
A: The MRO is a licensed physician with specific training in substance abuse disorder and drug testing procedures. The MRO reviews all non-negative laboratory results, contacts the employee to check for legitimate medical explanations, and reports the final result to the employer. No disciplinary action should be taken before MRO review is complete.

Q: How do you communicate a drug testing policy to employees?
A: Include it in the employee handbook with signed acknowledgment at onboarding. Provide the specific collection site address and hours. For safety-sensitive roles, include the drug testing policy in role-specific training as a standalone section, not just as part of the handbook.

Q: Can a drug testing policy be customized per department?
A: Testing types and panel scope can differ by role risk level. The chain of custody procedures, MRO review requirements, and confidentiality provisions must be consistent across the organization — these are the elements that create a legally defensible program.

Q: What happens if an employee fails to report for a required test?
A: Treat a failure to report within the stated window as a refusal to test, which is treated as a positive result. Document the notification, the window provided, and the employee's failure to appear. Consult HR before taking disciplinary action to confirm the refusal was properly documented.

Q: What if a positive test result was caused by a prescription medication?
A: The MRO review process is specifically designed to catch this. The MRO will contact the employee, confirm the prescription, verify the prescribed use is consistent with the detected substance and amount, and report the result as negative if the medical explanation is valid. This is why no discipline should be initiated before MRO review is complete.