[Code of Federal Regulations] [Title 42, Volume 2] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 42CFR407.4] [Page 269-270] TITLE 42--PUBLIC HEALTH HUMAN SERVICES PART 407_SUPPLEMENTARY MEDICAL INSURANCE (SMI) ENROLLMENT AND ENTITLEMENT--Table of Contents Subpart A_General Provisions Sec. 407.4 Basic requirements for entitlement. (a) An individual must meet the following requirements to be entitled to SMI: [[Page 270]] (1) Eligibility. The individual must meet the eligibility requirements specified in Sec. 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 Sec. 407.40. (b) SMI pays only for covered expenses incurred during an individual's period of entitlement.