42 U.S. Code § 5165 - Mitigation planning
As a condition of receipt of an increased Federal share for hazard mitigation measures under subsection (e) of this section, a State, local, or tribal government shall develop and submit for approval to the President a mitigation plan that outlines processes for identifying the natural hazards, risks, and vulnerabilities of the area under the jurisdiction of the government.
Federal contributions under section 5170c of this title may be used to fund the development and updating of mitigation plans under this section.
With respect to any mitigation plan, a State, local, or tribal government may use an amount of Federal contributions under section 5170c of this title not to exceed 7 percent of the amount of such contributions available to the government as of a date determined by the government.
If, at the time of the declaration of a major disaster, a State has in effect an approved mitigation plan under this section, the President may increase to 20 percent, with respect to the major disaster, the maximum percentage specified in the last sentence of section 5170c(a) of this title.