US Code - Part A: Motor vehicle emission and fuel standards

Section 7521 Emission standards for new motor vehicles or new motor vehicle engines
Section 7522 Prohibited acts
Section 7523 Actions to restrain violations
Section 7524 Civil penalties
Section 7525 Motor vehicle and motor vehicle engine compliance testing and certification
Section 7541 Compliance by vehicles and engines in actual use
Section 7542 Information collection
Section 7543 State standards
Section 7544 State grants
Section 7545 Regulation of fuels
Section 7546 Renewable fuel
Section 7547 Nonroad engines and vehicles
Section 7548 Study of particulate emissions from motor vehicles
Section 7549 High altitude performance adjustments
Section 7550 Definitions
Section 7551 Omitted
Section 7552 Motor vehicle compliance program fees
Section 7553 Prohibition on production of engines requiring leaded gasoline
Section 7554 Urban bus standards

Emission standards for moving sources

Aircraft emission standards