(a) In general. Except as provided in paragraph (b) of this section, §§53.4941(a)-1 through 53.4941(e)-1 shall apply to all acts of self-dealing engaged in after December 31, 1969.

(b) Transitional rules—(1) Commitments made prior to January 1, 1970, between private foundations and government officials. Section 4941 shall not apply to a payment for one or more purposes described in section 170(c) (1) or (2)(B) made on or after January 1, 1970, by a private foundation to a government official, if such payment is made pursuant to a commitment entered into prior to such date, but only if such commitment was made in accordance with the foundation's usual practices and is reasonable in amount in light of the purposes of the payment. For purposes of this subparagraph, a commitment will be considered entered into prior to January 1, 1970, if prior to such date, the amount and nature of the payments to be made and the name of the payee were entered on the records of the payor, or were otherwise adequately evidenced, or the notice of the payment to be received was communicated to the payee in writing.

(2) Special transitional rule. In the case of an act of self-dealing engaged in prior to July 5, 1971, section 4941(a) (1) shall not apply if:

(i) The participation (as defined in §53.4941(a)-1(a)(3)) by the disqualified person in such act is not willful and is due to reasonable cause (as defined in §53.4941(a)-1(b) (4) and (5)),

(ii) The transaction would not be a prohibited transaction if section 503(b) applied, and

(iii) The act is corrected (within the meaning of §53.4941(e)-1(c)) within a period ending [insert 90 days after date on which final regulations under section 4941 are filed by the Federal Register], extended (prior to the expiration of the original period) by any period which the Commissioner determines is reasonable and necessary (within the meaning of §53.4941(e)-1(d)) to bring about correction of the act of self-dealing.