This Act may be cited as the Ounce of Prevention Act.

(a) In general The Housing and Community Development Act of 1974 (42 U.S.C. 5301 et seq.U.S. Code — Title 42, Section 5301 and followingView official source on GovInfo) is amended— (1) in section 101(c)— (A) in paragraph (9), by striking the period at the end and inserting; and; and (B) by adding at the end the following: (10) the mitigation of threats to the health and welfare of a community posed by weather-related disaster and hazard events.; (2) in section 102(a), by adding at the end the following: (25) The term mitigation activities means activities that increase resilience to disasters and reduce or eliminate the long-term risk of loss of life, injury, damage to and loss of property, and suffering and hardship, by lessening the impact of future disasters.; (3) in section 104(b)(3), by inserting support mitigation of threats to the health and welfare of a community posed by weather-related disaster and hazard events, after blight,; and (4) in section 105— (A) in subsection (a)— (i) in paragraph (26), by striking the period at the end and inserting; and; and (ii) by adding at the end the following: (27) natural disaster mitigation activities, including new construction and rehabilitation of structures, if the grantee— (A) includes within the consolidated plan submitted under part 91 of title 24, Code of Federal Regulations, or any successor regulation, that the grantee is in a high risk area, and the Secretary certifies such risk, according to— (i) the National Risk Index developed by the Federal Emergency Management Agency; or (ii) a natural hazard risk index maintained by the State in which the grantee is located; and (B) describes in such consolidated plan how such activities will address natural disaster mitigation needs.; and (B) by adding at the end the following: (i) Use of grants for natural disaster mitigation (1) Effect on aggregation standards A grantee that uses grant amounts for natural disaster mitigation activities as described in subsection (a)(27) may treat housing units assisted under that activity— (A) as a single structure with respect to meeting criteria for national objects as described in section 570.208 of title 24, Code of Federal Regulations, or any successor regulation; and (B) as exempted from any aggregate standards for public benefit as described in section 570.209 of title 24, Code of Federal Regulations, or any successor regulation. (2) Technical assistance The Secretary shall provide technical assistance to grantees that use grant amounts for natural disaster mitigation activities as described in subsection (a)(27).. (b) Rulemaking Not later than 1 year after the date of the enactment of this Act, the Secretary of Housing and Urban Development shall issue rules to include— (1) mitigation efforts in areas with potential for natural disaster risk— (A) as an activity designed to meet community development needs having a particular urgency, as described in section 570.208(c) of title 24, Code of Federal Regulations; and (B) as criteria for national objects as described in section 570.483 of title 24, Code of Federal Regulations; and (2) threats posed by documented weather-related disaster or hazard risks as a serious and immediate threat to the health or welfare of the community, as described in such section.