417.470—Basis and scope.
        
        (a) Basis.
         This subpart implements those portions of  section 1857(e)(2) of the Act pertaining to cost sharing in enrollment-related costs and  section 1876(c), (g), (h), and (i) of the Act that pertain to the contract between CMS and an HMO or CMP for participation in the Medicare program.
    
    
    
    
    [50 FR 1346, Jan. 10, 1985, as amended at 58 FR 38079, July 15, 1993; 62 FR 63673, Dec. 2, 1997]