top of page

PHMSA Drug and Alcohol Testing 

Construction Workers

Our service can help you...

  • Find a testing location

  • Provide the documents needed for your employer or your company

  • Find SAMHSA approved laboratories nationwide for any of your testing needs

Employers have the responsibility to provide a safe and healthy workplace for all of its employees. The following types of pipeline workers are required to be in the PHMSA Drug & Alcohol Testing DOT mandated drug and alcohol testing program.

Drug testing under 49 CFR Part 199, Subpart A, is to be conducted as follows:  

Alcohol testing under Part 199, Subpart B is to be conducted as follows:  

The criteria or standards for conducting drug specimen collection and testing, as well as, alcohol concentration testing, must follow applicable requirements under 49 CFR Part 40.


Operators and contractors who engage in operations, maintenance and emergency-response of pipelines that transport the following:

  • Natural gas and other gas types

  • Hazardous liquids

  • Liquefied natural gas (LNG)

All PHMSA Drug tests are screened at a SAMHSA approved laboratory.

  • Prior to employment, after an accident, randomly, upon reasonable cause, upon the return to duty 

  • Substance Abuse Professional (SAP) required random follow-ups, of an employee who fails or refuses a DOT drug test  required under Part 199. 

  • SAP required random follow-ups, of an employee who fails or refuses a DOT alcohol test required under Part 199. 

  • After an accident, upon reasonable suspicion, upon the return to duty

bottom of page