[Code of Federal Regulations] [Title 23, Volume 1] [Revised as of April 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 23CFR640.101] [Page 197] TITLE 23--HIGHWAYS CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 640--CERTIFICATION ACCEPTANCE--Table of Contents Sec. 640.101 Purpose. The purpose of this part is to provide instructions for preparation and acceptance of State certification proposals to accomplish the policies and objectives of title 23, U.S.C., using State laws, regulations, directives, and standards. Also covered are procedures for administering projects under certification acceptance and evaluating State performance.