; (2) improvements to geodetic networks in support of building a capability for earthquake early warning; and (3) improvements to seismometers, Global Positioning System receivers, and associated infrastructure in support of building a capability for earthquake early warning. . 635. National public infrastructure predisaster hazard mitigation (a) Predisaster hazard mitigation Section 203 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5133 ) is amended— (1) in subsection (c) by inserting Public Infrastructure after the National ; (2) in subsection (e)(1)(B)— (A) by striking or at the end of clause (ii); (B) by striking the period at the end of clause (iii) and inserting ; or ; and (C) by adding at the end the following: (iv) to establish and carry out enforcement activities to implement the latest published editions of relevant consensus-based codes, specifications, and standards that incorporate the latest hazard-resistant designs and establish minimum acceptable criteria for the design, construction, and maintenance of residential structures and facilities that may be eligible for assistance under this Act for the purpose of protecting the health, safety, and general welfare of the buildings’ users against disasters. ; (3) in subsection (f)— (A) in paragraph (1) by inserting for mitigation activities that are cost effective after competitive basis ; and (B) by adding at the end the following: (3) Redistribution of unobligated amounts The President may— (A) withdraw amounts of financial assistance made available to a State (including amounts made available to local governments of a State) under this subsection that remain unobligated by the end of the third fiscal year after the fiscal year for which the amounts were allocated; and (B) in the fiscal year following a fiscal year in which amounts were withdrawn under subparagraph (A), add the amounts to any other amounts available to be awarded on a competitive basis pursuant to paragraph (1).