407.10—Eligibility to enroll.
(a) Basic rule.
Except as specified in paragraph (b) of this section, an individual is eligible to enroll for SMI if he or she—
(1)
Is entitled to hospital insurance under any of the rules set forth in §§ 406.10 through 406.15 of this chapter; or
(i)
Has attained age 65. (An individual is considered to have attained age 65 on the day before the 65th anniversary of his or her birth.)
(iii)
Is a citizen of the United States, or an alien lawfully admitted for permanent residence who has resided continuously in the United States during the 5 years preceding the month in which he or she applies for enrollment.
(1)
Spying, sabotage, treason, or subversive activities under chapter 37, 105, or 115 of title 18 of the United States Code; or