; (iii) the officer or employee has demonstrated ability in accounting, auditing, financial analysis, law, management analysis, public administration, or investigations; and (iv) not later than 30 days before the date on which the direction takes effect, the President communicates in writing to both Houses of Congress (including to the appropriate congressional committees) the substantive rationale, including the detailed and case-specific reasons, for the direction, including the reason for the direction that someone other than the individual who is performing the functions and duties of the Inspector General temporarily in an acting capacity (as of the date on which the President issues that direction) perform those functions and duties temporarily in an acting capacity. (3) Non-duty status Notwithstanding section 3345(a) of this title, and subparagraphs (B) and (C) of paragraph (2), and subject to paragraph (4), during any period in which an Inspector General is on non-duty status— (A) the first assistant to the position of Inspector General shall perform the functions and duties of the position temporarily in an acting capacity subject to the time limitations of section 3346 of this title; and (B) if the first assistant described in subparagraph (A) dies, resigns, or becomes otherwise unable to perform those functions and duties, the President (and only the President) may direct an officer or employee in that Office of Inspector General to perform those functions and duties temporarily in an acting capacity, subject to the time limitations of section 3346 of this title, if— (i) that direction satisfies the requirements under clauses (ii), (iii), and (iv) of paragraph (2)(C)