{"data":{"id":"us/49-cfr-232.503","jurisdiction":"us","citation":"49 CFR 232.503","heading":"Process to introduce new brake system technology.","body":"(a) Pursuant to the procedures contained in § 232.17, each railroad shall obtain special approval from the FRA Associate Administrator for Safety of a pre-revenue service acceptance testing plan, developed pursuant to § 232.505, for the new brake system technology, prior to implementing the plan.\n(b) Each railroad shall complete a pre-revenue service demonstration of the new brake system technology in accordance with the approved plan, shall fulfill all of the other requirements prescribed in § 232.505, and shall obtain special approval from the FRA Associate Administrator for Safety under the procedures of § 232.17 prior to using such brake system technology in revenue service.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 232—BRAKE SYSTEM SAFETY STANDARDS FOR FREIGHT AND OTHER NON-PASSENGER TRAINS AND EQUIPMENT; END-OF-TRAIN DEVICES","Subpart F—Introduction of New Brake System Technology"],"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":"aa52ba1979e2acff3c0af63b1e331f3ba1f1692f529882f2ae9b445e95829e41","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-232.501","next":"us/49-cfr-232.505"},"notice":"GroundRules: Original legal text. Not legal advice."}