U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 42Chapter IVPart 447Subpart I - Subpart I—Payment for Drugs
§ 447.500 - Basis and purpose.
§ 447.502 - Definitions.
§ 447.504 - Determination of average manufacturer price.
§ 447.505 - Determination of best price.
§ 447.506 - Authorized generic drugs.
§ 447.507 - Identification of inhalation, infusion, instilled, implanted, or injectable drugs (5i drugs).
§ 447.508 - Exclusion from best price of certain sales at a nominal price.
§ 447.509 - Medicaid drug rebates (MDR).
§ 447.510 - Requirement and penalties for manufacturers.
§ 447.511 - Requirements for States.
§ 447.512 - Drugs: Aggregate upper limits of payment.
§ 447.514 - Upper limits for multiple source drugs.
§ 447.516 - Upper limits for drugs furnished as part of services.
§ 447.518 - State plan requirements, findings, and assurances.
§ 447.520 - Federal Financial Participation (FFP): Conditions relating to physician-administered drugs.
§ 447.522 - Optional coverage of investigational drugs and other drugs not subject to rebate.
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