Air

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• Nitrogen Dioxide

• Carbon Monoxide

• Lead

• Consumer Products

• Regional Haze

• Interstate Air Pollution Transport

• CHEAPR - FAQ

  Find out the answers to some of the most frequently asked questions regarding the CHEAPR program

• Source Emissions Monitoring

  Learn about DEEP's Source Emissions Monitoring (SEM) group which oversees the stack, CEMS performance testing, and RATA programs. The SEM group works to determine actual pollutant emissions from stationary sources of air pollution and compliance with air pollution limits for both state and delegated federal standards.

• Fueling Mobile Sources

  Mobile sources in Connecticut typically burn gasoline or diesel fuel, but new vehicle technologies allow vehicles to operate with zero or low emissions by utilizing electricity or renewable fuels to power the vehicle. Learn more about Fuels in CT!

• CHEAPR - Resources

  Find all CHEAPR program documentation and promotional materials here.

• Air Compliance Assurance - Other Programs

  Learn about emission sources such as idling motor vehicles, open burning, outdoor wood burning furnaces (OWFs), gasoline dispensing facilities (GDFs) and more.

• Air Compliance Assurance - Enforcement

  Learn about administrative enforcement actions which are part of a compliance assurance program that provides certainty to the regulated community and public at large that the regulations of Connecticut state agencies will be enforced.

• Air Compliance Assurance - Forms

  Access various air compliance reporting forms which provide systematic communication between DEEP and the regulated community.

• Historical Version- Air Pollution Regulations

  This table includes historical regulatory text for regulations amended before July 1, 2017. These documents are provided for historical reference only

• Wood Burning in Connecticut

  Learn about wood burning as an alternative source of energy and the steps that can help to reduce the impact of nuisance odors and wood smoke particles.