[Code of Federal Regulations] [Title 23, Volume 1] [Revised as of April 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 23CFR635.301] [Page 176] 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. 635.301 Purpose. Source: 40 FR 17251, Apr. 18, 1975, unless otherwise noted. To prescribe the policies and procedures under which a State transportation department may be authorized to advance a Federal-aid highway project to the physical construction stage.