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Title 49

Displaying title 49, up to date as of 6/04/2026. Title 49 was last amended 6/04/2026.
There have been changes in the last two weeks to Chapter V.
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Title 49TransportationPart / Section
Subtitle BOther Regulations Relating to Transportation100 – 1699
Chapter VNational Highway Traffic Safety Administration, Department of Transportation500 – 599
Part 500 [Reserved]
Part 501Organization and Delegation of Powers and Duties501.1 – 501.8
Part 509OMB Control Numbers for Information Collection Requirements509.1 – 509.2
Part 510Information Gathering Powers510.1 – 510.12
Part 511Adjudicative Procedures511.1 – 511.78
Part 512Confidential Business Information512.1 – 512.23
Part 513Whistleblower Program513.1 – 513.12
Part 520 [Reserved]
Part 523Vehicle Classification523.1 – 523.10
Part 525Exemptions from Average Fuel Economy Standards525.1 – 525.12
Part 526Petitions and Plans for Relief Under the Automobile Fuel Efficiency Act of 1980526.1 – 526.5
Part 529Manufacturers of Multistage Automobiles529.1 – 529.6
Part 531Passenger Automobile Average Fuel Economy Standards531.1 – 531.6
Part 533Light Truck Fuel Economy Standards533.1 – 533.6
Part 534Rights and Responsibilities of Manufacturers in the Context of Changes in Corporate Relationships534.1 – 534.8
Part 535Medium- and Heavy-Duty Vehicle Fuel Efficiency Program535.1 – 535.10
Part 536Transfer and Trading of Fuel Economy Credits536.1 – 536.10
Part 537Automotive Fuel Economy Reports537.1 – 537.12
Part 538Manufacturing Incentives for Alternative Fuel Vehicles538.1 – 538.9
Part 541Federal Motor Vehicle Theft Prevention Standard541.1 – 541.6
Part 542Procedures for Selecting Light Duty Truck Lines to Be Covered by the Theft Prevention Standard542.1 – 542.2
Part 543Exemption from Vehicle Theft Prevention Standard543.1 – 543.10
Part 545Federal Motor Vehicle Theft Prevention Standard Phase-in and Small-Volume Line Reporting Requirements545.1 – 545.9
Part 551Procedural Rules551.1 – 551.68
Part 552Petitions for Rulemaking, Defect, and Noncompliance Orders552.1 – 552.15
Part 553Rulemaking Procedures553.1 – 553.39
Part 554Standards Enforcement and Defects Investigation554.1 – 554.11
Part 555Temporary Exemption from Motor Vehicle Safety and Bumper Standards555.1 – 555.18
Part 556Exemption for Inconsequential Defect or Noncompliance556.1 – 556.9
Part 557Petitions for Hearings on Notification and Remedy of Defects557.1 – 557.8
Part 561Documentation for Electric-Powered Vehicles561.1 – 561.11
Part 562Lighting and Marking of Agricultural Equipment562.1 – 562.11
Part 563Event Data Recorders563.1 – 563.12
Part 564Replaceable Light Source and Sealed Beam Headlamp Information564.1 – 564.5
Part 565Vehicle Identification Number (VIN) Requirements565.1 – 565.26
Part 566Manufacturer Identification566.1 – 566.6
Part 567Certification567.1 – 567.8
Part 568Vehicles Manufactured in Two or More Stages—All Incomplete, Intermediate and Final-Stage Manufacturers of Vehicles Manufactured in Two or More Stages568.1 – 568.7
Part 569Regrooved Tires569.1 – 569.9
Part 570Vehicle in Use Inspection Standards570.1 – 570.63
Part 571Federal Motor Vehicle Safety Standards571.1 – 571.500
Part 572Anthropomorphic Test Devices572.1 – 572.219
Part 573Defect and Noncompliance Responsibility and Reports573.1 – 573.16
Part 574Tire Identification and Recordkeeping574.1 – 574.10
Part 575Consumer Information575.1 – 575.401
Part 576Record Retention576.1 – 576.8
Part 577Defect and Noncompliance Notification577.1 – 577.14
Part 578Civil and Criminal Penalties578.1 – 578.8
Part 579Reporting of Information and Communications About Potential Defects579.1 – 579.29
Part 580Odometer Disclosure Requirements580.1 – 580.17
Part 581Bumper Standard581.1 – 581.8
Part 582Insurance Cost Information Regulation582.1 – 582.5
Part 583Automobile Parts Content Labeling583.1 – 583.17
Part 585Phase-in Reporting Requirements585.1 – 585.141
Part 586Replica Motor Vehicles586.1 – 586.13
Part 587Deformable Barriers587.1 – 587.19
Part 588Child Restraint Systems Recordkeeping Requirements588.1 – 588.6
Parts 589-590 [Reserved]
Part 591Importation of Vehicles and Equipment Subject to Federal Safety, Bumper and Theft Prevention Standards591.1 – 591.10
Part 592Registered Importers of Vehicles Not Originally Manufactured to Conform to the Federal Motor Vehicle Safety Standards592.1 – 592.9
Part 593Determinations That a Vehicle Not Originally Manufactured to Conform to the Federal Motor Vehicle Safety Standards Is Eligible for Importation593.1 – 593.10
Part 594Schedule of Fees Authorized by 49 U.S.C. 30141594.1 – 594.10
Part 595Make Inoperative Exemptions595.1 – 595.9
Parts 596-598 [Reserved]
Part 596Automatic Emergency Braking Test Devices596.1 – 596.10
Part 599Requirements and Procedures for Consumer Assistance to Recycle and Save Act Program599.100 – 599.603