; and (B) paragraph (2)(B) shall be applied by substituting $80,000 for $60,000 . . 636. Recruitment and relocation bonuses and retention allowances for personnel of the Department of Homeland Security The Secretary of Homeland Security shall ensure that the authority to pay recruitment and relocation bonuses under section 5753 of title 5, United States Code, the authority to pay retention bonuses under section 5754 of such title, and any other similar authorities available under any other provision of law, rule, or regulation, are exercised to the fullest extent allowable in order to encourage service in the Department of Homeland Security. 637. Repeal of the Department of Homeland Security human resources management system (a) Repeal (1) In general Effective as of the date specified in section 4 of the Homeland Security Act of 2002 ( 6 U.S.C. 101 note), chapter 97 of title 5, United States Code (as added by section 841(a)(2) of such Act), section 841(b)(3) of such Act, and subsections (c) and (e) of section 842 of such Act are repealed. (2) Regulations Any regulations prescribed under authority of chapter 97 of title 5, United States Code, are void ab initio. (b) Nullification of previous exclusions Effective as of the date of the enactment of this Act, all previous determinations as to whether— (1) an agency or subdivision of the Department of Homeland Security (or a predecessor agency or subdivision transferred into the Department) is excluded from coverage under chapter 71 of title 5, United States Code, (2) a unit or subdivision of a unit within the Department of Homeland Security (or a predecessor agency or subdivision transferred into the Department) is not appropriate for representation by a labor organization under such chapter, or (3) an employee or position within the Department of Homeland Security (or a predecessor agency or subdivision transferred into the Department) is within a unit that is not appropriate for representation by a labor organization under such chapter, are null and void, except to