30-day grace periods
(A) Start-up If the payor elects the application of this subparagraph with respect to the payee, subsection (a) shall also apply to any reportable payment made during the 30-day period described in paragraph (2)(A), (3)(A), or (4)(B).
(B) Stopping Unless the payor elects not to have this subparagraph apply with respect to the payee, subsection (a) shall also apply to any reportable payment made after the close of the period described in paragraph (1), (2), or (4) (as the case may be) and before the 30th day after the close of such period. A similar rule shall also apply with respect to the period described in paragraph (3)(A) where the stop date is determined under clause (i) or (ii) of paragraph (3)(B).
(C) Election of shorter grace period The payor may elect a period shorter than the grace period set forth in subparagraph (A) or (B), as the case may be.