by employers described in section 2(5)(A)(i)(IV). (2) Agency regulations The regulations prescribed under paragraph (1) shall be the same as substantive regulations promulgated by the Secretary to carry out this Act except insofar as the President (or designee) may determine, for good cause shown and stated together with the regulations prescribed under paragraph (1), that a modification of such regulations would be more effective for the implementation of the rights and protections involved under this section. (d) Employees covered by chapter 63 of title 5 , United States Code (1) Authority Subject to subsection (e), not later than 90 days after the Secretary prescribes regulations under subsection (a), the Director of the Office of Personnel Management shall prescribe such regulations as are necessary to carry out this Act with respect to employees described in section 2(4)(E) and other individuals affected by employers described in section 2(5)(A)(i)(V). (2) Agency regulations The regulations prescribed under paragraph (1) shall be the same as substantive regulations promulgated by the Secretary to carry out this Act except insofar as the Director may determine, for good cause shown and stated together with the regulations prescribed under paragraph (1), that a modification of such regulations would be more effective for the implementation of the rights and protections involved under this section. (e) Immediate compliance The rights and responsibilities specified in this Act shall take effect on the date of enactment of this Act and employers and other persons subject to those responsibilities shall comply immediately, without regard whether regulations have been prescribed under this section. 13. Effective dates (a) In general This Act takes effect on the date of enactment of this Act. (b) Previous declarations If a public health emergency was declared before and remains in effect on the date of enactment of this Act, for purposes of this Act (and in particular section 3(c) of this Act) the public health