(37) (A) The term “multiemployer plan” means a plan— (i) to which more than one employer is required to contribute, (ii) which is maintained pursuant to one or more collective bargaining agreements between one or more employee organizations and more than one employer, and (iii) which satisfies such other requirements as the Secretary may prescribe by regulation. (B) For purposes of this paragraph, all trades or businesses (whether or not incorporated) which are under common control within the meaning of section 1301(b)(1) of this title are considered a single employer. (C) Notwithstanding subparagraph (A), a plan is a multiemployer plan on and after its termination date if the plan was a multiemployer plan under this paragraph for the plan year preceding its termination date. (D) For purposes of this subchapter, notwithstanding the preceding provisions of this paragraph, for any plan year which began before September 26, 1980 , the term “multiemployer plan” means a plan described in this paragraph (37) as in effect immediately before such date. (E) Within one year after September 26, 1980 , a multiemployer plan may irrevocably elect, pursuant to procedures established by the corporation and subject to the provisions of sections 1453(b) and (c) of this title, that the plan shall not be treated as a multiemployer plan for all purposes under this chapter or the Internal Revenue Code of 1954 if for each of the last 3 plan years ending prior to the effective date of the Multiemployer Pension Plan Amendments Act of 1980— (i) the plan was not a multiemployer plan because the plan was not a plan described in subparagraph (A)(iii) of this paragraph and section 414(f)(1)(C) of title 26 (as such provisions were in effect on the day before September 26, 1980 ); and (ii) the plan had been identified as a plan that was not a multiemployer plan in substantially all its filings with the corporation, the Secretary of Labor and the Secretary of the Treasury. (F) (i) For purposes of this subchapter a qualified football coaches plan— (I) shall be treated as a multiemployer plan to the extent not inconsistent with the purposes of this subparagraph; and (II) notwithstanding section 401(k)(4)(B) of title 26 , may include a qualified cash and deferred arrangement. (ii) For purposes of this subparagraph, the term “qualified football coaches plan” means any defined contribution plan which is established and maintained by an organization— (I) which is described in section 501(c) of title 26 ; (II) the membership of which consists entirely of individuals who primarily coach football as full-time employees of 4-year colleges or universities described in section 170(b)(1)(A)(ii) of title 26 ; and (III) which was in existence on September 18, 1986 . (G) (i) Within 1 year after August 17, 2006 — (I) an election under subparagraph (E) may be revoked, pursuant to procedures prescribed by the Pension Benefit Guaranty Corporation, if, for each of the 3 plan years prior to August 17, 2006 , the plan would have been a multiemployer plan but for the election under subparagraph (E), and (II) a plan that meets the criteria in clauses (i) and (ii) of subparagraph (A) of this paragraph or that is described in clause (vi) may, pursuant to procedures prescribed by the Pension Benefit Guaranty Corporation, elect to be a multiemployer plan, if— (aa) for each of the 3 plan years immediately preceding the first plan year for which the election under this paragraph is effective with respect to the plan, the plan has met those criteria or is so described, (bb) substantially all of the plan’s employer contributions for each of those plan years were made or required to be made by organizations that were exempt from tax under section 501 of title 26 , and (cc) the plan was established prior to September 2, 1974 . (ii) An election under this subparagraph shall be effective for all purposes under this chapter and under title 26, starting with any plan year beginning on or after January 1, 1999 , and ending before January 1, 2008 , as designated by the plan in the election made under clause (i)(II). (iii) Once made, an election under this subparagraph shall be irrevocable, except that a plan described in clause (i)(II) shall cease to be a multiemployer plan as of the plan year beginning immediately after the first plan year for which the majority of its employer contributions were made or required to be made by organizations that were not exempt from tax under section 501 of title 26 . (iv) The fact that a plan makes an election under clause (i)(II) does not imply that the plan was not a multiemployer plan prior to the date of the election or would not be a multiemployer plan without regard to the election. (v) (I) No later than 30 days before an election is made under this subparagraph, the plan administrator shall provide notice of the pending election to each plan participant and beneficiary, each labor organization representing such participants or beneficiaries, and each employer that has an obligation to contribute to the plan, describing the principal differences between the guarantee programs under subchapter III and the benefit restrictions under this subchapter for single employer and multiemployer plans, along with such other information as the plan administrator chooses to include. (II) Within 180 days after August 17, 2006 , the Secretary shall prescribe a model notice under this clause. (III) A plan administrator’s failure to provide the notice required under this subparagraph shall be treated for purposes of section 1132(c)(2) of this title as a failure or refusal by the plan administrator to file the annual report required to be filed with the Secretary under section 1021(b)(1) of this title . (vi) A plan is described in this clause if it is a plan sponsored by an organization which is described in section 501(c)(5) of title 26 and exempt from tax under section 501(a) of such title and which was established in Chicago, Illinois, on August 12, 1881 . (vii) For purposes of this chapter and title 26, a plan making an election under this subparagraph shall be treated as maintained pursuant to a collective bargaining agreement if a collective bargaining agreement, expressly or otherwise, provides for or permits employer contributions to the plan by one or more employers that are signatory to such agreement, or participation in the plan by one or more employees of an employer that is signatory to such agreement, regardless of whether the plan was created, established, or maintained for such employees by virtue of another document that is not a collective bargaining agreement.