US lawFederal (United States)RegulationsTitle 42 CFR — Public HealthChapter IV — CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICESPart 456 — UTILIZATION CONTROLSubpart B — Utilization Control: All Medicaid Services456.2142 C.F.R. § 456.21Scope.Last amended: 2017Year: 2026Length: 15 wordsOfficial source Cite as 42 C.F.R. § 456.21 (2026)This subpart prescribes utilization control requirements applicable to all services provided under a State plan.Next42 C.F.R. § 456.22