Department of the Interior
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Related to United States Department of the Interior: United States Department of State, United States Department of Agriculture, United States Department of the Treasury, United States Department of Energy, United States Department of Commerce, United States Department of Justice
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Noun | 1. | ![]() executive department - a federal department in the executive branch of the government of the United States FWS, United States Fish and Wildlife Service, US Fish and Wildlife Service - an agency in the Department of the Interior that conserves and protects fish and wildlife and their habitats; assesses the environmental impact of pesticides and nuclear power site and hydroelectric dams and thermal pollution National Park Service - an agency of the Interior Department responsible for the national parks |