(a) Reduction in apportionment. If the Secretary shall find that any State has diverted funds contrary to 23 U.S.C. 126, he shall take such action as he may deem necessary to comply with said provision of law by reducing the first Federal-aid apportionment of primary, secondary and urban funds made to the State after the date of such finding. In any such reduction, each of these funds shall be reduced in the same proportion.

(b) Furnishing of information. The Administrator may require any State to submit to him such information as he may deem necessary to assist the Secretary in carrying out the provisions of 23 U.S.C. 126 and paragraph (a) of this section.