Child over specified age to be disregarded for certain benefit purposes unless disabled

For the purposes of subsections (b)(1), (c)(1), (g)(1), (q)(5), and (q)(7) of this section and paragraphs (2), (3), and (4) of section 403(c) of this title , a child who is entitled to child’s insurance benefits under subsection (d) for any month, and who has attained the age of 16 but is not in such month under a disability (as defined in section 423(d) of this title ), shall be deemed not entitled to such benefits for such month, unless he was under such a disability in the third month before such month.

So much of subsections (b)(3), (c)(4), 1 (d)(5), (g)(3), and (h)(4) of this section as precedes the semicolon, shall not apply in the case of any child unless such child, at the time of the marriage referred to therein, was under a disability (as defined in section 423(d) of this title ) or had been under such a disability in the third month before the month in which such marriage occurred.

The last sentence of subsection (c) of section 403 of this title , subsection (f)(1)(C) of section 403 of this title , and subsections (b)(3)(B), (c)(6)(B), 1 (f)(3)(B), and (g)(6)(B) 1 of section 416 of this title shall not apply in the case of any child with respect to any month referred to therein unless in such month or the third month prior thereto such child was under a disability (as defined in section 423(d) of this title ).