{"data":{"id":"us/49-cfr-234.251","jurisdiction":"us","citation":"49 CFR 234.251","heading":"Standby power.","body":"Standby power shall be tested at least once each month.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 234—GRADE CROSSING SAFETY","Subpart D—Maintenance, Inspection, and Testing"],"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":"262a37e2d7263534ce1f3caabd935978cd96f1d7e88cdce1e9968d06855b3ae4","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-234.249","next":"us/49-cfr-234.253"},"notice":"GroundRules: Original legal text. Not legal advice."}