{"data":{"id":"us/49-cfr-581.4","jurisdiction":"us","citation":"49 CFR 581.4","heading":"Definitions.","body":"All terms defined in 49 U.S.C. 32101 are used as defined therein.\nBumper face bar means any component of the bumper system that contacts the impact ridge of the pendulum test device.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER V—NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 581—BUMPER STANDARD"],"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":"e2f294ef8d1a15d81f425e5dee5cc35673824a0dc02b413adfdc22063b8b390f","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-581.3","next":"us/49-cfr-581.5"},"notice":"GroundRules: Original legal text. Not legal advice."}