{"data":{"id":"us/49-cfr-227.113","jurisdiction":"us","citation":"49 CFR 227.113","heading":"Noise operational controls.","body":"(a) Railroads may use noise operational controls at any sound level to reduce exposures to levels below those required by Table A-1 of appendix A of this part.\n(b) Railroads are encouraged to use noise operational controls when employees are exposed to sound exceeding an 8-hour TWA of 90 dB(A).","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 227—OCCUPATIONAL SAFETY AND HEALTH IN THE LOCOMOTIVE CAB","Subpart B—Occupational Noise Exposure for Railroad Operating Employees."],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"19c428d0f5555dd278e27c88e6f1196359f05051a7c73acd6b1af80cc5083118","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-227.111","next":"us/49-cfr-227.115"},"notice":"GroundRules: Original legal text. Not legal advice."}