§ 407.1 Basis and scope.

(a) Statutory basis. The supplementary medical insurance (SMI) program is authorized by Part B of title XVIII of the Social Security Act.

(1) Section 1831 of the Act establishes the program.

(2) Sections 1836 and 1837 set forth the eligibility and enrollment requirements.

(3) Section 1838 specifies the entitlement periods, which vary depending on the time and method of enrollment and on the basis for termination.