DOT Drug & Alcohol Testing Services Nationwide

DOT Testing Services from Accredited Drug Testing

Accredited Drug Testing Inc. provides DOT drug testing and DOT breath alcohol testing through testing centers throughout the United States. Services are available for employers, owner-operators, employees, and safety-sensitive transportation workers who must comply with DOT drug and alcohol testing requirements.

DOT drug and alcohol testing is governed by 49 CFR Part 40, which describes required procedures for conducting workplace drug and alcohol testing for federally regulated transportation industries. Agency-specific rules determine who is covered, when testing is required, and what situations trigger testing.

DOT Services We Provide

Who Is Covered by DOT Drug & Alcohol Testing?

DOT drug and alcohol testing applies to safety-sensitive transportation employees and employers regulated by DOT agencies, including FMCSA, FAA, FTA, FRA, PHMSA, and USCG.

• CDL truck drivers
• Bus drivers
• Airline pilots
• Flight attendants
• Aircraft mechanics
• Train engineers
• Railroad workers
• Pipeline workers
• Boat captains
• Merchant mariners

DOT Agencies Covered

Each DOT agency has specific regulations that determine who must be tested and when testing is required.

• FMCSA: Federal Motor Carrier Safety Administration
• FAA: Federal Aviation Administration
• FTA: Federal Transit Administration
• FRA: Federal Railroad Administration
• PHMSA: Pipeline and Hazardous Materials Safety Administration
• USCG: United States Coast Guard

When DOT Testing Is Required

DOT-regulated employers may be required to conduct testing in several situations, depending on the agency rules that apply to the employee and employer.

• Pre-employment testing before a covered employee performs safety-sensitive duties.
• Random testing through a compliant random selection process.
• Post-accident testing when DOT agency criteria are met.
• Reasonable suspicion testing based on trained supervisor observations.
• Return-to-duty testing after a DOT drug or alcohol violation.
• Follow-up testing as directed by a Substance Abuse Professional.

What Happens After a DOT Drug or Alcohol Violation?

If a DOT-regulated employee tests positive, refuses a test, or otherwise violates DOT drug and alcohol rules, the employee must be removed from safety-sensitive functions. Before returning to DOT safety-sensitive work, the employee must complete the return-to-duty process, including evaluation by a Substance Abuse Professional, successful completion of required recommendations, and a negative return-to-duty test.

Follow-up testing may also be required after the employee returns to safety-sensitive duties.

Why Choose Accredited Drug Testing?

• Nationwide DOT drug and alcohol testing locations
• Fast scheduling by phone or online
• Random consortium program support
• DOT testing for FMCSA, FAA, FTA, FRA, PHMSA, and USCG-regulated employers
• DOT compliance support for employers and owner-operators
• Trained staff familiar with DOT drug and alcohol testing requirements

Need a DOT Drug Test or Breath Alcohol Test?

Call Accredited Drug Testing today or schedule your test online.

DOT Drug Testing FAQ

What regulation controls DOT drug and alcohol testing procedures?

DOT drug and alcohol testing procedures are governed by 49 CFR Part 40. DOT agency-specific rules determine who is covered and when testing is required.

Does Part 40 apply to all DOT agencies?

Yes. Part 40 applies to DOT-required testing across transportation modes, while agencies such as FMCSA, FAA, FTA, FRA, PHMSA, and USCG have their own rules for covered employees and testing situations.

Can Accredited Drug Testing help with random consortium testing?

Yes. Accredited Drug Testing provides random consortium enrollment and random selection support for DOT-regulated employers and owner-operators.

What DOT tests can be scheduled?

DOT drug testing and breath alcohol testing may be scheduled for pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing.

What should I do if I am being audited or inspected?

If your company is being audited, inspected, or has been cited for DOT drug and alcohol testing issues, advise Accredited Drug Testing when calling so your request can be directed to staff familiar with DOT compliance support.

Authoritative DOT Resources:

• U.S. DOT ODAPC — 49 CFR Part 40
• FMCSA — Overview of Drug and Alcohol Rules
• DOT Office of Drug and Alcohol Policy & Compliance