DOT Drug & Alcohol Testing Near You

Drug Testing Near You provides professional DOT drug and alcohol testing services for regulated employers and safety-sensitive employees. DOT testing is not the same as non-DOT testing. DOT tests must follow the procedures required by 49 CFR Part 40, which explains how DOT drug and alcohol testing is conducted for the federally regulated transportation industry.

The U.S. Department of Transportation Office of Drug and Alcohol Policy and Compliance, also known as ODAPC, provides official guidance and interpretation for Part 40. Employers, collectors, laboratories, Medical Review Officers, Substance Abuse Professionals, and service agents must follow the applicable DOT testing procedures.

What Is 49 CFR Part 40?

49 CFR Part 40 is the DOT regulation that explains the required procedures for transportation workplace drug and alcohol testing programs. ODAPC states that Part 40 explains how drug and alcohol testing is conducted, who is authorized to participate in the DOT testing program, and what employees must do before returning to duty after a drug or alcohol violation.

Part 40 applies to the testing process itself. DOT agency-specific regulations explain who is covered, when testing is authorized, and the consequences for non-compliance.

Who Needs DOT Drug & Alcohol Testing?

DOT drug and alcohol testing generally applies to employees who perform safety-sensitive transportation functions under DOT agency rules. The specific agency rule determines who is covered and when testing is required.

• FMCSA: Commercial motor vehicle drivers and certain CDL holders.
• FAA: Safety-sensitive aviation employees.
• FRA: Covered railroad employees.
• FTA: Public transportation employees in safety-sensitive roles.
• PHMSA: Pipeline and hazardous materials safety-sensitive workers.
• USCG: Certain maritime employees and marine employers.

Types of DOT Drug & Alcohol Tests

DOT Urine Drug Testing Process

DOT urine collections must follow Part 40 procedures designed to protect specimen integrity and maintain a proper chain of custody. These procedures include employee identification, collection site security, specimen handling, temperature checks, split specimen procedures, and proper completion of the Federal Drug Testing Custody and Control Form.

Employer Responsibilities Under Part 40

Employers are responsible for ensuring DOT testing is conducted properly, even when using a third-party administrator, collector, laboratory, MRO, SAP, or other service agent. Part 40 includes employer responsibilities related to testing procedures, result handling, record checks, confidentiality, and required action after violations.

• Use DOT procedures for DOT-required drug and alcohol tests.
• Use qualified service agents when applicable.
• Ensure covered employees are tested when required by DOT rules.
• Take required action after verified positive, adulterated, substituted, or alcohol violation results.
• Do not allow an employee to perform safety-sensitive functions until return-to-duty requirements are completed after a violation.
• Protect DOT drug and alcohol testing information according to DOT requirements.

What Happens After a DOT Drug or Alcohol Violation?

Under 49 CFR Part 40, when an employer receives a verified positive drug test result, the employer must immediately remove the employee from performing safety-sensitive functions. The same immediate removal requirement applies to verified adulterated or substituted drug test results, which are treated as refusals, and alcohol test results of 0.04 or higher.

An employee who has violated DOT drug and alcohol regulations may not return to safety-sensitive duties until the employee successfully completes the return-to-duty process required by Part 40 Subpart O.

Return-to-Duty Process

The return-to-duty process is required after a DOT drug or alcohol testing violation. The process involves a qualified Substance Abuse Professional, required education and/or treatment, a follow-up SAP evaluation, a return-to-duty test, and follow-up testing.

• SAP evaluation after the DOT violation.
• Completion of SAP-recommended education and/or treatment.
• Follow-up SAP evaluation.
• Return-to-duty test with a negative result before safety-sensitive work resumes.
• Follow-up testing plan as directed by the SAP.

Why Choose Drug Testing Near You?

• DOT drug and alcohol testing support based on Part 40 procedures.
• Services for employers, CDL drivers, owner-operators, and safety-sensitive workers.
• Support for pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing.
• Compliance-focused guidance for employers managing DOT testing programs.
• Clear explanation of DOT testing procedures and employer responsibilities.
• Fast scheduling and direct customer support.

Contact Drug Testing Near You