From the HSDL: Hazard Mitigation Assistance Program and Policy Guide Released. This is an updated version of an existing document.

FEMA has released the 2023 Hazard Mitigation Assistance Program and Policy Guide (HMA Guide). This guide details “the policy and procedural requirements of HMA’s programs over the lifecycle of an activity,” and replaces the last comprehensive policy guidance released in February 2015. The HMA Guide outlines the following HMA grant programs:

Building Resilient Infrastructure and Communities (BRIC)
Flood Mitigation Assistance (FMA)
Hazard Mitigation Grant Program (HMGP)
Hazard Mitigation Grant Program Post Fire (HMGP Post Fire)

Additional information and resources related to the guide can be found at this link, including a Summary of Changes for the 2023 HMA Guide compared to 2015.