DEEP headquarters at 79 Elm Street in Hartford has partially re-opened to staff and members of the public as of Tuesday, February 3. The DEEP records room has re-opened. The DEEP Central Permit Processing Unit (CPPU) will be open to the public starting on Wednesday, Feb. 4. For updates, click here

Air

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  • Nitrogen Dioxide Trends

  • CT LEV Program

    The LEV program requires that all new vehicles sold in Connecticut meet strict California emission standards.

  • DERA Grants

    The Diesel Emission Reduction Act (DERA), contained within the Energy Policy Act of 2005, provides grants and loans to states and other eligible entities to achieve significant reductions in diesel emissions.

  • CHEAPR - Contact Us

    Email and phone contact information for the CHEAPR program

  • CHEAPR - Program Statistics

    Access interactive CHEAPR program statistics.

  • EVConnecticut - Home

    EVConnecticut provides information on where and how you can charge your car, charging incentives and much more about EVs!

  • EVConnecticut - Electric Vehicles 101

    There are many benefits of owning an electric vehicle and an EV can easily fit into your lifestyle. We break down the types of different EVs and provide you with entertaining and informative information.

  • EVConnecticut - Workplace Charging

    Besides charging your electric vehicle overnight at home, the second place you are likely to spend an extended amount of time is at work. Explore the ways workplace charging can provide employees the convenience of charging while they are at work.

  • VW Settlement - Admin Archive

    Access a list of previous VW grant recipients and an archive of other administrative documents, forms and reports that were filed as required by the State Mitigation Trust Agreement.

  • Air Monitoring Network

  • AQI Health Effects Statements

  • Air Bureau News

  • CHEAPR - Home

    The Connecticut Hydrogen and Electric Automobile Purchase Rebate (CHEAPR) offers incentives for Connecticut residents who purchase or lease a new eligible battery electric, plug-in hybrid electric or fuel cell electric vehicle.

  • Air Compliance Assurance - Training & Education - Boiler Rule Online Training

    If you operate a boiler in Connecticut at a commercial, industrial or institutional facility, there is a good chance that your boiler is subject to the Area Source Boiler Rule (40 CFR 63, subpart JJJJJJ). To help you comply with the rule, DEEP has created a series of online training modules which will assist you in determining whether your boiler(s) is subject to the rule.

  • VW Settlement - Grants

    View current grant opportunities and common forms required for grantees.