PHMSA – Pipeline and Hazardous Materials Safety Administration
Who is covered?
A person who performs on a pipeline or liquefied natural gas (LNG) facility an operation, maintenance, or emergency-response function.
(Definition from Office of Drug and Alcohol Policy Compliance)
Where can I find the regulations for my designated agency?
49 CFR Part 199
PHMSA DOT Post-Accident Drug and Alcohol Testing Guidelines