1. Short title This Act may be cited as the Preventing Health Emergencies And Temperature-related Illness and Deaths Act of 2023 or the Preventing HEAT Illness and Deaths Act of 2023 . 2. Definitions In this Act: (1) Community with environmental justice concerns The term community with environmental justice concerns means a community with significant representation of communities of color, low-income communities, or Tribal and indigenous communities, that experiences, or is at risk of experiencing, higher or more adverse human health or environmental effects, as compared to other communities. (2) Extreme heat The term extreme heat means heat that substantially exceeds local climatological norms in terms of any combination of the following: (A) Duration. (B) Intensity. (C) Season length. (D) Frequency. (3) Heat The term heat means any combination of the atmospheric parameters associated with modulating human thermal regulation, such as air temperature, humidity, solar exposure, and wind speed. (4) Heat event The term heat event means an occurrence of increased heat that may have heat-health implications. (5) Heat-health The term heat-health means health effects to humans from heat, during or outside of heat events, including from vulnerability and exposure, or the risk of such effects. (6) Planning The term planning means activities performed across timescales (including days, weeks, months, years, and decades) with scenario-based, probabilistic or deterministic information to identify and take actions to proactively mitigate heat-health risks from increased frequency, duration, and intensity of heat waves and increased ambient temperature. (7) Preparedness The term preparedness means activities performed across timescales (including days, weeks, months, years, and decades) with probabilistic or deterministic information to manage risk in advance of a heat event and increased ambient temperature. (8) Tribal government The term Tribal government means the recognized governing body of any Indian or Alaska Native