The purpose of this plan is to provide information and to identify the Department of Health and Human Services’ (DHHS) role in response to excessive heat emergencies in the State in collaboration with the NH Public Health Regions (PHR) and with other State agencies, and in accordance with the National Incident Management System (NIMS). The plan includes the threshold for response activation, a description of heat indices and associated health risks, response activities by heat emergency phase, and criteria for cooling centers. It also includes templates for an extreme heat press release, hotline script, health alert message, and heat fact sheet.