§ 4220.4 PBGC action on requests.

(a) General. Upon receipt of a complete request, the PBGC shall notify the plan sponsor in writing of the date of commencement of the 90-day period specified in section 4220 of ERISA. Except as provided in paragraph (c) of this section, the PBGC shall approve or disapprove a plan amendment submitted to it under this part within 90 days after receipt of a complete request for approval. If the PBGC fails to act within the 90-day period, or within that period notifies the plan sponsor that it will not disapprove the amendment, the amendment may be made effective without the approval of the PBGC.