['Drug and Alcohol Testing - DOT']
['Drug testing - Motor Carrier', 'Alcohol testing - Motor Carrier']
06/24/2024
(a) All domestic-domiciled employers must implement the requirements of this part on the date the employer begins commercial motor vehicle operations.
(b) All foreign-domiciled employers must implement the requirements of this part on the date the employer begins commercial motor vehicle operations in the United States.
[62 FR 37151, July 11, 1997]