Section 457.1000 - Basis, scope, and applicability(a)Statutory basis. This subpart interprets and implements- (1) Section 2105(c)(2)(B) of the Act, which sets forth the requirements to permit a State to exceed the 10 percent cost limit on expenditures other than benefit expenditures; and(2) Section 2105(c)(3) of the Act, which permits the purchase of family coverage.(b)Scope. This subpart sets forth requirements for obtaining a waiver under title XXI.(c)Applicability. This subpart applies to separate child health programs; and applies to Medicaid expansion programs when the State claims administrative costs under title XXI and seeks a waiver of limitations on such claims for use of a community-based health delivery system. This subpart does not apply to demonstrations requested under section 1115 of the Act.66 FR 2686, Jan. 11, 2001, as amended at 66 FR 33824, June 25, 2001