The Department of Energy and Climate Change (DECC) was a department of the Government of the United Kingdom created on 3 October 2008, by Prime Minister Gordon Brown to take over some of the functions related to energy of the Department for Business, Enterprise and Regulatory Reform, and those relating to climate change of the Department for Environment, Food and Rural Affairs.

The Department for Business, Energy, and Industrial Strategy (BEIS) was a ministerial department of the United Kingdom Government, from July 2016 to February 2023.