49 C.F.R. § 383.72 Implied consent to alcohol testing.
Title 49 - Transportation
Any person who holds a CDL is considered to have consented to such testing as is required by any State or jurisdiction in the enforcement of §§383.51(b)(2)(i) and 392.5(a)(2) of this chapter. Consent is implied by driving a commercial motor vehicle. [66 FR 49872, Oct. 1, 2001]
Title 49: Transportation
PART 383—COMMERCIAL DRIVER'S LICENSE STANDARDS; REQUIREMENTS AND PENALTIES
Subpart E—Testing and Licensing Procedures
§ 383.72 Implied consent to alcohol testing.