{"source":"reg-vehicles","note":"Free 5-item preview. The full feed is $0.05/call at GET /v1/reg-vehicles/changes.","question":"Which final or proposed federal rules affecting motor-vehicle safety standards were published since T, and which carry compliance obligations?","sample":[{"source":"reg-vehicles","entityId":"fedreg:2026-11068","type":"final_rule","title":"Federal Motor Vehicle Safety Standards No. 216; Roof Crush Resistance, Federal Motor Vehicle Safety Standard No. 216a; Roof Crush Resistance; Upgraded Standard","summary":"On May 30, 2025, NHTSA published a notice of proposed rulemaking (NPRM) to remove the obsolete Federal Motor Vehicle Safety Standard (FMVSS) No. 216, related to roof crush resistance. The agency received one comment, but the comment is not within the scope of the proposed rule. Therefore, the agency is removing the obsolete FMVSS No. 216 as proposed.","significance":6,"detectedAt":"2026-07-14T22:19:18.870Z","effectiveDate":"2026-07-06","sourceUrl":"https://www.federalregister.gov/documents/2026/06/03/2026-11068/federal-motor-vehicle-safety-standards-no-216-roof-crush-resistance-federal-motor-vehicle-safety","detail":{"documentNumber":"2026-11068","documentType":"Rule","agencies":"Transportation Department, National Highway Traffic Safety Administration","publicationDate":"2026-06-03","vertical":"reg-vehicles"}},{"source":"reg-vehicles","entityId":"fedreg:2026-11069","type":"final_rule","title":"Federal Motor Vehicle Safety Standards No. 303; Fuel System Integrity of Compressed Natural Gas Vehicles","summary":"On May 30, 2025, NHTSA published a notice of proposed rulemaking (NPRM) proposing to remove obsolete text in Federal Motor Vehicle Safety Standard (FMVSS) No. 303, \"Fuel system integrity of compressed natural gas vehicles\". The agency received no comment on the proposed changes to FMVSS No. 303, and therefore the agency is adopting the changes in this final rule.","significance":6,"detectedAt":"2026-07-14T22:19:18.870Z","effectiveDate":"2026-07-06","sourceUrl":"https://www.federalregister.gov/documents/2026/06/03/2026-11069/federal-motor-vehicle-safety-standards-no-303-fuel-system-integrity-of-compressed-natural-gas","detail":{"documentNumber":"2026-11069","documentType":"Rule","agencies":"Transportation Department, National Highway Traffic Safety Administration","publicationDate":"2026-06-03","vertical":"reg-vehicles"}},{"source":"reg-vehicles","entityId":"fedreg:2026-11070","type":"final_rule","title":"Federal Motor Vehicle Safety Standards No. 217; Bus Emergency Exits and Window Retention and Release","summary":"On May 30, 2025, NHTSA published a notice of proposed rulemaking (NPRM) proposing to remove obsolete requirements from Federal Motor Vehicle Safety Standard (FMVSS) No. 217, Bus emergency exits and window retention and release. The agency received no comment on the proposed changes to FMVSS No. 217, and therefore the agency is adopting the changes in this final rule.","significance":8,"detectedAt":"2026-07-14T22:19:18.870Z","effectiveDate":"2026-07-06","sourceUrl":"https://www.federalregister.gov/documents/2026/06/03/2026-11070/federal-motor-vehicle-safety-standards-no-217-bus-emergency-exits-and-window-retention-and-release","detail":{"documentNumber":"2026-11070","documentType":"Rule","agencies":"Transportation Department, National Highway Traffic Safety Administration","publicationDate":"2026-06-03","vertical":"reg-vehicles"}},{"source":"reg-vehicles","entityId":"fedreg:2026-11072","type":"final_rule","title":"Federal Motor Vehicle Safety Standard No. 214; Side Impact Protection; Federal Motor Vehicle Safety Standard No. 305a; Electric-Powered Vehicles: Electric Powertrain Integrity; Federal Motor Vehicle …","summary":"On May 30, 2025, NHTSA published a notice of proposed rulemaking (NPRM) proposing to remove obsolete requirements from Federal Motor Vehicle Safety Standard (FMVSS) No. 214, \"Side Impact Protection.\" The agency received two comments that supported the changes to FMVSS No. 214. In addition, one of the commenters suggested amendments to remove additional obsolete regulatory text. NHTSA is adopting the proposed changes with amendments made in response to the comments. The final rule also amends FMVSS No. 305a, \"Electric-Powered Vehicles: Electric Powertrain Integrity\" and FMVSS No. 307, \"Fuel Sy…","significance":8,"detectedAt":"2026-07-14T22:19:18.870Z","effectiveDate":"2026-07-06","sourceUrl":"https://www.federalregister.gov/documents/2026/06/03/2026-11072/federal-motor-vehicle-safety-standard-no-214-side-impact-protection-federal-motor-vehicle-safety","detail":{"documentNumber":"2026-11072","documentType":"Rule","agencies":"Transportation Department, National Highway Traffic Safety Administration","publicationDate":"2026-06-03","vertical":"reg-vehicles"}},{"source":"reg-vehicles","entityId":"fedreg:2026-11075","type":"final_rule","title":"Federal Motor Vehicle Safety Standards No. 304; Compressed Natural Gas Fuel Container Integrity","summary":"On May 30, 2025, NHTSA published a notice of proposed rulemaking (NPRM) proposing to remove obsolete text in Federal Motor Vehicle Safety Standard (FMVSS) No. 304, \"Compressed natural gas fuel container integrity\". The agency received no comment on the proposed changes to FMVSS No. 304, and therefore the agency is adopting the changes in this final rule.","significance":6,"detectedAt":"2026-07-14T22:19:18.870Z","effectiveDate":"2026-07-06","sourceUrl":"https://www.federalregister.gov/documents/2026/06/03/2026-11075/federal-motor-vehicle-safety-standards-no-304-compressed-natural-gas-fuel-container-integrity","detail":{"documentNumber":"2026-11075","documentType":"Rule","agencies":"Transportation Department, National Highway Traffic Safety Administration","publicationDate":"2026-06-03","vertical":"reg-vehicles"}}]}