Although this is still evolving, the initial blueprint of the federal budget has the following language:

DHS starts on page 23 of the 62 page document.  FEMA preparedness grant language is on page 24.

Eliminates or reduces State and local grant funding by $667 million for programs administered by the Federal Emergency Management Agency (FEMA) that are either unauthorized by the Congress, such as FEMA’s Pre-Disaster Mitigation Grant Program, or that must provide more measurable results and ensure the Federal Government is not supplanting other stakeholders’ responsibilities, such as the Homeland Security Grant Program. For that reason, the Budget also proposes establishing a 25 percent non-Federal cost match for FEMA preparedness grant awards that currently require no cost match. This is the same cost-sharing approach as FEMA’s disaster recovery grants. The activities and acquisitions funded through these grant programs are primarily State and local functions. •

Link to the Trump budget blueprint...