§ 414. Insured status for purposes of old-age and survivors insurance benefits
For the purposes of this subchapter—
(a)
“Fully insured individual” defined
The term “fully insured individual” means any individual who had not less than—
(1)
one quarter of coverage (whenever acquired) for each calendar year elapsing after 1950 (or, if later, the year in which he attained age 21) and before the year in which he died or (if earlier) the year in which he attained age 62, except that in no case shall an individual be a fully insured individual unless he has at least 6 quarters of coverage; or
(b)
“Currently insured individual” defined
The term “currently insured individual” means any individual who had not less than six quarters of coverage during the thirteen-quarter period ending with
(3)
the quarter in which he became entitled to primary insurance benefits under this subchapter as in effect prior to August 28, 1950, or
(4)
in the case of any individual entitled to disability insurance benefits, the quarter in which he most recently became entitled to disability insurance benefits, not counting as part of such thirteen-quarter period any quarter any part of which was included in a period of disability unless such quarter was a quarter of coverage, and who satisfies the criterion specified in subsection (c) of this section.
(c)
Criterion described
For purposes of subsections (a) and (b) of this section, the criterion specified in this subsection is that the individual, if not a United States citizen or national—
(1)
has been assigned a social security account number that was, at the time of assignment, or at any later time, consistent with the requirements of subclause (I) or (III) of section
405
(c)(2)(B)(i) of this title; or