Code of Federal Regulations > Title 42 > Chapter IV > Part 428 - PART 428—MEDICARE PART D DRUG INFLATION REBATE PROGRAM

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A [§ 428.10 - § 428.20] - Subpart A—General Provisions

Subpart B [§ 428.100 - § 428.101] - Subpart B—Determination of Part D Rebatable Drugs

Subpart C [§ 428.200 - § 428.204] - Subpart C—Determination of the Rebate Amount for Part D Rebatable Drugs

Subpart D [§ 428.300 - § 428.303] - Subpart D—Reducing the Rebate Amount for Part D Rebatable Drugs in Shortage and When There Is a Severe Supply Chain Disruption or Likely Shortage

Subpart E [§ 428.400 - § 428.405] - Subpart E—Reports of Rebate Amounts, Reconciliation, Suggestion of Error, and Payments

Subpart F [§ 428.500 - § 428.500] - Subpart F—Enforcement of Manufacturer Payment of Rebate Amounts