23 C.F.R. § 657.19 Effect of failure to certify or to enforce State laws adequately.
Title 23 - Highways
Beginning January 1, 1981, if a State fails to certify as required by this regulation or if the Secretary determines that a State is not adequately enforcing all State laws respecting maximum vehicle sizes and weights on FA highways notwithstanding the State's certification, the FA highway funds apportioned to the State for the next fiscal year shall be reduced by an amount equal to 10 percent of the amount which would otherwise be apportioned to the State under 23 U.S.C. 104, and/or by the amount required pursuant to 23 U.S.C. 127.
Title 23: Highways
PART 657—CERTIFICATION OF SIZE AND WEIGHT ENFORCEMENT
§ 657.19 Effect of failure to certify or to enforce State laws adequately.

