[Code of Federal Regulations] [Title 23, Volume 1] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 23CFR635.303] [Page 186] TITLE 23--HIGHWAYS CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 635--CONSTRUCTION AND MAINTENANCE--Table of Contents Subpart C--Physical Construction Authorization Sec. 635.303 Applicability. The provisions of this subpart are applicable to all Federal-aid highway construction projects except projects constructed under an approved Certification Acceptance Plan.