U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 42Chapter IVPart 423Subpart N - Subpart N—Medicare Contract Determinations and Appeals
§ 423.641 - Contract determinations.
§ 423.642 - Notice of contract determination.
§ 423.643 - Effect of contract determination.
§ 423.650 - Right to a hearing, burden of proof, standard of proof, and standards of review.
§ 423.651 - Request for hearing.
§ 423.652 - Postponement of effective date of a contract determination when a request for a hearing is filed timely.
§ 423.653 - Designation of hearing officer.
§ 423.654 - Disqualification of hearing officer.
§ 423.655 - Time and place of hearing.
§ 423.656 - Appointment of representatives.
§ 423.657 - Authority of representatives.
§ 423.658 - Conduct of hearing.
§ 423.659 - Evidence.
§ 423.660 - Witnesses.
§ 423.661 - Witnesses lists and documents.
§ 423.662 - Prehearing and summary judgment.
§ 423.663 - Record of hearing.
§ 423.664 - Authority of hearing officer.
§ 423.665 - Notice and effect of hearing decision.
§ 423.666 - Review by the Administrator.
§ 423.667 - Effect of Administrator's decision.
§ 423.668 - Reopening of a contract determination or decision of a hearing officer or the Administrator.
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