5 U.S.C. § 3349a
(b) With respect to any vacancy that exists during the 60-day period beginning on a transitional inauguration day, the 210-day period under section 3346 or 3348 shall be deemed to begin on the later of the date occurring—
(Added Pub. L. 105–277, div. C, title I, § 151(b), , 112 Stat. 2681–615.)
Section effective 30 days after , and applicable to any office that becomes vacant after such effective date, with certain exceptions, see section 151(d) of Pub. L. 105–277, set out as a note under section 3345 of this title.