; and (B) for purposes of paragraph (4), the employee is entitled, under paragraphs (1) and (3), to a combined total of 26 workweeks of leave plus, if applicable, any additional period of leave used under subsection (d)(3)(B)(ii) of this section or section 202(d)(2)(B) of the Congressional Accountability Act of 1995 ( 2 U.S.C. 1312(d)(2)(B) ), as the case may be. . (3) Applicability The amendments made by this subsection shall not be effective with respect to any birth or placement occurring before October 1, 2020. (b) Paid parental leave for presidential employees (1) Amendments to chapter 5 of title 3, United States Code Section 412 of title 3, United States Code, is amended— (A) in subsection (a)(1), by adding at the end the following: In applying section 102 of such Act with respect to leave for an event described in subsection (a)(1)(A) or (B) of such section to covered employees, subsection (c) of this section shall apply and in the case of leave that includes leave for such an event, the period of leave to which a covered employee is entitled under section 102(a)(1) of such Act shall be 12 administrative workweeks of leave plus any additional period of leave used under subsection (c)(2)(B) of this section. For purposes of applying section 102(a)(4) of such Act, in the case of leave that includes leave under subparagraph (A) or (B) of section 102(a)(1) of such Act, a covered employee is entitled, under paragraphs (1) and (3) of section 102(a) of such Act, to a combined total of 26 workweeks of leave plus any additional period of leave used under subsection (c)(2)(B) of this section. ; (B) by redesignating subsections (c) and (d) as subsections (d) and (e), respectively