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

Long Island Sound

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  • Sea Level Rise

    Information about sea level rise in Connecticut and the adopted sea level change scenario for Connecticut.

  • Coastal Hazards

    Coastal hazards have always been an issue for Connecticut due in part to concentrated population and development along the coast. Learn how storms, flooding, erosion, and the effects of climate change can affect Connecticut’s coast.

  • LIS License Plate Program Benefits

    Benefits of the Long Island Sound License Plate Program

  • LIS Blue Plan Final Draft

    The final draft of the LIS Blue Plan being submitted to the Connecticut General Assembly.

  • Long Island Sound Blue Plan Video Series

    The Long Island Sound Blue Plan Video Series is a collection of six videos about the importance of the Blue Plan.

  • Long Island Sound Blue Plan Completed Draft Plan

    The first draft of the Long Island Sound Blue Plan became available for public review and comment between March 20, 2019, and June 21, 2019.

  • Blue Plan Policies

    The Blue Plan's policies and information will enable existing permit programs to achieve clearer and more certain protection of the economic, cultural, and ecological values of Long Island Sound.

  • Blue Plan Public Participation

    Your participation in the Blue Plan is essential to help us institute a plan that best supports your needs as a user of Long Island Sound.

  • Blue Plan Process webpage

    Learn about the process that was utilized to develop the Long Island Sound Blue Plan.

  • Blue Plan Transparent Process

    The development and implementation of the Long Island Sound Blue Plan is open and transparent, utilizing multiple means of communication.

  • Blue Plan Sound Science

    The Blue Plan has compiled a series of datasets, which are available on various online portals reviewed by scientific experts.

  • Blue Plan Adaptive Management

    The Long Island Sound Blue Plan will be adapted as necessary every five years to reflect new data, uses, and issues.

  • Blue Plan Comment Form

    Engaging stakeholders, which includes the general public, is critical to the success of the Long Island Sound Blue Plan.

  • LIS License Plate Application

    How to order a Long Island Sound license plate

  • Aquaculture Brochure

    This guide provides an overview of the regulatory authorities and outlines the permitting requirements for those interested in pursuing aquaculture in Connecticut.