Enrollment periods

An individual may enroll in the insurance program established by this part only in such manner and form as may be prescribed by regulations, and only during an enrollment period prescribed in or under this section. In the case of individuals who first satisfy paragraph (1) or (2) of section 1395o(a) of this title before March 1, 1966, the initial general enrollment period shall begin on the first day of the second month which begins after July 30, 1965, and shall end on May 31, 1966. For purposes of this subsection and subsection (d), an individual who has attained age 65 and who satisfies paragraph (1) of section 1395o(a) of this title but not paragraph (2) of such section shall be treated as satisfying such paragraph (1) on the first day on which he is (or on filing application would have been) entitled to hospital insurance benefits under part A. In the case of an individual who first satisfies paragraph (1) or (2) of section 1395o(a) of this title on or after March 1, 1966, his initial enrollment period shall begin on the first day of the third month before the month in which he first satisfies such paragraphs and shall end seven months later. Where the Secretary finds that an individual who has attained age 65 failed to enroll under this part during his initial enrollment period (based on a determination by the Secretary of the month in which such individual attained age 65), because such individual (relying on documentary evidence) was mistaken as to his correct date of birth, the Secretary shall establish for such individual an initial enrollment period based on his attaining age 65 at the time shown in such documentary evidence (with a coverage period determined under section 1395q of this title as though he had attained such age at that time). There shall be a general enrollment period during the period beginning on January 1 and ending on March 31 of each year. Any individual— All of the provisions of this section shall apply to individuals satisfying subsection (f), except that— In any case where the Secretary finds that an individual’s enrollment or nonenrollment in the insurance program established by this part or part A pursuant to section 1395i–2 of this title is unintentional, inadvertent, or erroneous and is the result of the error, misrepresentation, or inaction of an officer, employee, or agent of the Federal Government, or its instrumentalities, the Secretary may take such action (including the designation for such individual of a special initial or subsequent enrollment period, with a coverage period determined on the basis thereof and with appropriate adjustments of premiums) as may be necessary to correct or eliminate the effects of such error, misrepresentation, or inaction. In the case of an individual who— In the case of an individual who— In the case of an individual who is entitled to benefits under part A pursuant to section 426(b) of this title and— who at the time the individual first satisfies paragraph (1) of section 1395o(a) of this title— In applying this section in the case of an individual who is entitled to benefits under part A pursuant to the operation of section 426(h) of this title, the following special rules apply: In the case of an individual who— For purposes of paragraph (1), an individual described in this paragraph is an individual who— is serving as a volunteer outside of the United States through a program— Beginning January 1, 2023, the Secretary may establish special enrollment periods in the case of individuals who satisfy paragraph (1) or (2) of section 1395o(a) of this title and meet such exceptional conditions as the Secretary may provide. In the case of an individual who— as of January 1, 2024, is—