Legal Resources | Code of Federal Regulations, Title 49 | 40.1
Subpart A--General. Applicability.
This part applies, through regulations that reference it issued by agencies of the Department of Transportation, to transportation employers, including self-employed individuals, required to conduct drug and/or alcohol testing programs by DOT agency regulations and to such transportation employers' officers, employees, agents and contractors (including, but not limited to, consortia). Employers are responsible for the compliance of their officers, employees, agents, consortia and/ or contractors with the requirements of this part.