Please Call: Stockton (209) 337-3100                                         Reno (775) 323-8273


We provide DOT compliant drug and alcohol testing for all the various DOT agencies, which include:

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

Lab Based Urine DOT Testing

Collection time is 15-20 minutes. Average time for specimen results is 24-72 hours.

Common Detection Windows:

Amphetamines:                     24-72 hours   

Cocaine:                                  24-72 hours

Opiates:                                  24-72 hours

PCP:                                        Occasional user- 1-5 days. Habitual user- 30 days

THC:                                        1-3 days for infrequent use. Chronic user, up to 30 days


**California Recreational and Medical Marijuana**

The State of California now allows the use of recreational marijuana free from criminal prosecution. While the relationship with recreational/medical marijuana and the workplace continues to evolve, employers in the State of California are permitted to enforce a drug free workplace policy. Employers may reserve the right to test their employees and applicants to ensure they are drug free, even if an applicant or employee has been prescribed a medical marijuana card.


For more information please contact Intercept Lab Services (209-337-3100) or Intercept Offender Monitoring (209-684-9001).