(a) An individual must meet the following requirements to be entitled to SMI:

(1) Eligibility. The individual must meet the eligibility requirements specified in §407.10(a).

(2) Enrollment. The individual must enroll for SMI, or must be enrolled by a State under a buy-in agreement as specified in §407.40.

(b) SMI pays only for covered expenses incurred during an individual's period of entitlement.