<prompt> Translate the following text to EnglishEPA inatumia Integrated Planning Model IPM kuchambua athari za takwimu za mazingira kwenye sekta ya umeme katika majimbo 48 ya karibu na Wilaya ya Columbia.  <response>: EPA uses the Integrated Planning Model IPM to analyze the projected impact of environmental policies on the electric power sector in the 48 contiguous states and the District of Columbia. 