
Climate Change
Addressing climate change presents residents, businesses, nonprofits, and municipalities a chance to create, evolve, and maintain a sustainable environment, a robust economy, and a higher quality of life today and tomorrow.
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Determining Generator Category
How a generator of hazardous waste can determine their hazardous waste generator category.
Contaminants of Emerging Concern
An emerging contaminant is a chemical or material characterized by a perceived, potential, or real threat to human health or the environment or by a lack of published health standards. General information on emerging contaminants, as well as perchlorate, nanomaterials, and pharmaceuticals and personal care products.
2025 Connecticut Hunting and Trapping Guide
Hunting and trapping season details, laws, regulations, and other-related information for 2025.
Air Compliance Assurance - Training & Education
Access air compliance assurance guidance materials, presentations, training modules, webinars, and workshops updated as new information and training opportunities become available.
View current grant opportunities and common forms required for grantees.
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.
Air Compliance Assurance - Training & Education - RICE Rule Online Training
If you own or operate a stationary engine in Connecticut, there is a good chance that your unit is subject to the RICE NESHAP (40 CFR 63, subpart ZZZZ). To help you comply with the rule, DEEP has created a series of online training modules which will assist you in determining whether your engine(s) is subject to the rule and, if so, which requirements apply to your specific engine(s).
Letterboxing Clues for Camp Columbia State Forest
Camp Columbia SF Letterbox Clues
Letterboxing Clues for Mohawk State Forest
CT Mohawk SF Letterboxing Clues
Information on the requirements for RCRA Corrective Action land disposal facilities in Connecticut.
Information about Connecticut's regulations for the management of hazardous waste.
Water Conservation information
Emission Reduction Credits (ERCs) are uncapped trading systems that sources of air emissions earn by reducing emissions below a specified rate. Learn about Continuous Emission Reduction Credits (CERCs), Discrete Emission Reduction Credits (DERCs), and more.
Information about the management of household hazardous waste in Connecticut.