Connecticut Department of Energy and Environmental Protection

{{Short description|State agency in the US state of Connecticut}}

{{primary sources|date=December 2022}}

{{Use mdy dates|date=February 2025}}

{{Infobox government agency

| agency_name = Connecticut Department of Energy and Environmental Protection

| type = Environmental protection

| logo = DeptEnergyEnvProt_logo.jpg

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| formed = July 1, 2011

| preceding1 = Department of Environmental Protection

| preceding2 = Department of Public Utility Control

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| jurisdiction = Government of Connecticut

| headquarters = 79 Elm Street Hartford, Connecticut 06106-5127

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| minister1_name = Katie Scharf Dykes, Commissioner

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| deputyminister1_name = Betsey Wingfield

| deputyminister1_pfo = Deputy Commissioner, Environmental Quality

| deputyminister2_name = Susan Whalen

| deputyminister2_pfo = Deputy Commissioner, Environmental Conservation

| deputyminister3_name = Victoria Hackett

| deputyminister3_pfo = Deputy Commissioner, Energy

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| website = {{URL|https://www.ct.gov/deep}}

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The Connecticut Department of Energy and Environmental Protection (DEEP) is a state agency in the US state of Connecticut. The department oversees the state's natural resources and environment and regulates public utilities and energy policy. It is headquartered in Hartford.

The agency was created on July 1, 2011, by the merging of two other state agencies, the Connecticut Department of Environmental Protection and the Connecticut Department of Public Utility Control.{{Cite web|url=http://www.ct.gov/dep/cwp/view.asp?A=4013&Q=482412 |title=Connecticut Department of Energy and Environmental Protection Launched |publisher=Connecticut Department of Energy and Environmental Protection |date=July 1, 2011 |access-date=July 12, 2011}} Daniel C. Esty was appointed as commissioner of the DEEP upon its creation in July 2011. Rob Klee served as commissioner of the department from January 2014 through December 2018. Katie S. Dykes has served as commissioner since January 2019.

The law enforcement branch of DEEP is the Connecticut State Environmental Conservation Police. Officers were previously known as game wardens.{{Cite web |title=Environmental Conservation Police Officers |url=https://portal.ct.gov/DEEP/Environmental-Conservation-Police/Environmental-Conservation-Police-Officers |access-date=2022-05-27 |website=CT.gov - Connecticut's Official State Website |language=en}}