(a) Tax on reversions of qualified plan assets to employer. Every employer liable for the tax imposed under section 4980(a) with respect to an employer reversion (as defined in section 4980(c)(2)) shall file a quarterly return on Form 5330 and shall include therein the information required by such form and the instructions issued with respect thereto. The quarterly return on Form 5330 shall be filed with respect to employer reversions from each qualified plan (as defined in section 4980(c)(1)).

(b) [Reserved]

(c) Entity manager tax on prohibited tax shelter transactions—(1) In general. Any entity manager of a tax-exempt entity described in section 4965(c)(4), (c)(5), (c)(6), or (c)(7) who is liable for tax under section 4965(a)(2) shall file a return on Form 5330, “Return of Excise Taxes Related to Employee Benefit Plans,” on or before the 15th day of the fifth month following the close of such entity manager's taxable year during which the entity entered into the prohibited tax shelter transaction, and shall include therein the information required by such form and the instructions issued with respect thereto.

(2) Transition rule. A Form 5330, “Return of Excise Taxes Related to Employee Benefit Plans,” for an excise tax under section 4965 that is or was due on or before October 4, 2007 will be deemed to have been filed on the due date if it is filed by October 4, 2007 and if the section 4965 tax that was required to be reported on that Form 5330 is paid by October 4, 2007.

(d) Effective/applicability date—(1) In general. Paragraph (c) of this section is applicable on July 6, 2007.

(2) Expiration date. Paragraph (c) of this section will expire on July 6, 2010.