[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: 23CFR630.104] [Page 139] TITLE 23--HIGHWAYS CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 630_PRECONSTRUCTION PROCEDURES--Table of Contents Subpart A_Project Authorization and Agreements Sec. 630.104 Applicability. (a) This subpart is applicable to all Federal-aid projects unless specifically exempted. (b) Other projects which involve special procedures are to be approved, or authorized as set out in the implementing instructions or regulations for those projects.