[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: 23CFR620.101] [Page 139] TITLE 23--HIGHWAYS CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 620--ENGINEERING--Table of Contents Subpart A--Highway Improvements in the Vicinity of Airports Sec. 620.101 Purpose. Source: 39 FR 35145, Sept. 30, 1974, unless otherwise noted. The purpose of this section is to implement title 23 U.S.C., section 318 which requires coordination of airport and highway developments to insure (a) that airway-highway clearances are adequate for the safe movement of air and highway traffic, and (b) that the expenditure of public funds for airport and highway improvements is in the public interest.