The Maryland Extreme Heat Emergency Plan, developed by the Maryland Department of Health (MDH), guides the state’s actions during an Extreme Heat Event, as well as those of partner agencies and organizations, as defined below. This plan also provides guidance for the local health departments (LHDs) as they fulfill their roles; however, it does not mandate that LHDs perform the actions described. The Office of Preparedness & Response (OP&R) within MDH provides weekly heat reports on the OP&R webpage during each heat season.