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

Endangered, Threatened, and Special Concern Species By County

Fairfield

Hartford

Litchfield

Middlesex

New Haven

New London

Tolland

Windham

Content last updated in December 2025.