[Code of Federal Regulations] [Title 40, Volume 22] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR201.14] [Page 72] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 201--NOISE EMISSION STANDARDS FOR TRANSPORTATION EQUIPMENT; INTERSTATE RAIL CARRIERS--Table of Contents Subpart B--Interstate Rail Carrier Operations Standards Sec. 201.14 Standard for retarders. Effective January 15, 1984, no carrier subject to this regulation shall operate retarders that exceed an adjusted average maximum A- weighted sound level of 83 dB at any receiving property measurement location, when measured with fast meter response in accordance with Subpart C of this part. [45 FR 1263, Jan. 4, 1980; 47 FR 14709, Apr. 6, 1982]