DOT Drug Testing | Nationwide

What Is DOT Drug Testing?

DOT drug testing is a federally mandated testing program required by the Department of Transportation for all safety-sensitive employees. Governed by 49 CFR Part 40, these tests must follow strict chain-of-custody procedures and be conducted by certified collectors at certified laboratories.

At Assurity Drug Testing nationwide, every DOT drug test we administer meets or exceeds all federal requirements. Our certified collectors ensure proper specimen handling, documentation, and reporting so your results are always audit-ready.

Who Needs DOT Drug Testing?

DOT drug testing is required for employees in safety-sensitive positions regulated by federal agencies, including:

• Commercial motor vehicle drivers (CDL holders) regulated by FMCSA
• Pipeline workers regulated by PHMSA
• Aviation employees regulated by FAA
• Railroad workers regulated by FRA
• Transit employees regulated by FTA
• Maritime workers regulated by USCG

If you operate a trucking company, logistics business, or any company with CDL drivers in the Treasure Valley, DOT drug testing is not optional. It's a federal requirement.

When Is DOT Drug Testing Required?

Under federal regulations, DOT drug testing must be conducted in the following situations:

• Pre-employment: Before a safety-sensitive employee begins work
• Random testing: Unannounced selection from a random testing pool
• Post-accident: Following a DOT-reportable accident
• Reasonable suspicion: When a trained supervisor observes signs of substance use
• Return-to-duty: Before an employee returns after a violation
• Follow-up: Ongoing testing after a return-to-duty clearance

What Does a DOT Drug Test Screen For?

The standard DOT 5-panel urine drug test screens for:

• Marijuana (THC)
• Cocaine
• Opioids (codeine, morphine, heroin, hydrocodone, oxycodone, hydromorphone, oxymorphone)
• Amphetamines (amphetamine, methamphetamine, MDMA, MDA)
• Phencyclidine (PCP)

Why Compliance Matters

Failing to maintain a compliant DOT drug testing program can result in severe consequences for your business:

• Fines up to $16,000 per violation from FMCSA
• Driver disqualification and out-of-service orders
• Increased liability exposure in accident lawsuits
• Loss of operating authority
• Damage to your company's safety rating and CSA score

Assurity Drug Testing helps you avoid these risks by managing your testing program with full regulatory compliance.

Our DOT Drug Testing Process

• Step 1: Walk in or schedule your appointment
• Step 2: Our certified collector verifies identification and completes the Federal Drug Testing Custody and Control Form (CCF)
• Step 3: Specimen is collected following strict chain-of-custody procedures
• Step 4: Sample is sent to a certified laboratory for analysis
• Step 5: Results are reviewed by a Medical Review Officer (MRO) and reported to the employer