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Evaporative Emissions
On this page you will find regulations and guidance information for fuel evaporative emissions.
Evaporative emissions, which typically come from fuel that escapes unburned from storage tanks and fuel lines, are comprised of volatile organic compounds. They contributed significantly to the nation’s ground-level ozone problem, causing harm to human health and public welfare. EPA has collaborated with the automotive industry and California Air Resources Board to reduce evaporative emissions and the associated health and environmental risks, resulting in regulations that limit the amount of evaporative emissions that vehicles release while driving, while parked, and during refueling events.
Regulations/Guidance
- Direct Final Rule: Control of Air Polution from New Motor Vehicles and New Motor Vehicle Engines: Technical Amendments to Evaporative Emissions Regulations, Dynamometer Regulations, and Vehicle Labeling (signed November 30, 2005).
- Fact Sheet (PDF) (3 pp, 35K, EPA420-F-05-035, November 2005)
- Direct Final Rule. (also available as a PDF file, 14 pp, 202K, Federal Register: December 8, 2005 Volume 70, Number 235)
- Notice of Proposed Rulemaking (NPRM) (also available as a PDF file, 4 pp, 97K, Federal Register: December 8, 2005 Volume 70, Number 235)
- Tier 2 Vehicle & Gasoline Sulfur Final Rulemaking: The rulemaking to adopt Tier 2 exhaust standards includes more stringent standards for evaporative emissions (published February 10, 2000)
- Direct Final Rule: The Regulation of Fuels and Fuel Additives: Controls Applicable to Gasoline Retailers and Wholesale Purchaser-Consumers; 10 Gallon Per Minute Fuel Dispensing Limit Requirement Implementation (published June 26, 1996).
- Final Rule: Control of Air Pollution from New Motor Vehicles and New Motor Vehicle Engines: Evaporative and Refueling Emission Regulations for Gasoline- and Methanol-Fueled Light-Duty Vehicles and Light-Duty Trucks and Heavy-Duty Vehicles; Technical Amendments; Final Rule (published August 23, 1995).
- Final Rule: Control of Air Pollution from New Motor Vehicles and New Motor Vehicle Engines: Evaporative Emission Regulations for Gasoline- and Methanol-Fueled Light-Duty Vehicles, Light-Duty Trucks and Heavy-Duty Vehicles (PDF) (70 pp, 7.1MB, published March 24, 1993)
- Regulatory Impact Analysis (PDF) (105 pp, 3.9MB)
For further information or assistance regarding this Web page contact: Contact: Lynn Sohacki, phone: 734-214-4851, email: sohacki.lynn@epa.gov