Certain employees in the building and construction industry .—
Subparagraph (A) shall be applied by substituting “age 55” for “age 59½” in the case of a multiemployer plan described in section 4203(b)(1)(B)(i) of the Employee Retirement Income Security Act of 1974, with respect to individuals who were participants in such plan on or before April 30, 2013 , if—
(i)#
the trust to which subparagraph (A) applies was in existence before January 1, 1970 , and
(ii)#
before December 31, 2011 , at a time when the plan provided that distributions may be made to an employee who has attained age 55 and who is not separated from employment at the time of such distribution, the plan received at least 1 written determination from the Internal Revenue Service that the trust to which subparagraph (A) applies constituted a qualified trust under this section.