[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR325.3] [Page 8] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 325_COMPLIANCE WITH INTERSTATE MOTOR CARRIER NOISE EMISSION STANDARDS --Table of Contents Subpart A_General Provisions Sec. 325.3 Effective date. The rules in this part are effective on October 15, 1975.