such lifetime income investment or such managed account investment may no longer be held as an investment option under the plan (within the meaning of section 401(a)(38)(B)(vii)), provided that any distribution under this subparagraph must be in the form of a qualified distribution (as defined in section 401(a)(38)(B)(i)) or, in the case of a lifetime income investment, a qualified plan distribution annuity contract (as defined in section 401(a)(38)(B)(iv)), . (e) Effective date The amendments made by this section shall apply to plan years beginning after December 31, 2017.