U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 49Chapter VPart 535 - AND HEAVY-DUTY VEHICLE FUEL EFFICIENCY PROGRAM
§ 535.1 - Scope.
§ 535.2 - Purpose.
§ 535.3 - Applicability.
§ 535.4 - Definitions.
§ 535.5 - Standards.
§ 535.6 - Measurement and calculation procedures.
§ 535.7 - Averaging, banking, and trading (ABT) credit program.
§ 535.8 - Reporting and recordkeeping requirements.
§ 535.9 - Enforcement approach.
§ 535.10 - How do manufacturers comply with fuel consumption standards?
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