U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 42Chapter IVPart 423Subpart B - Subpart B—Eligibility and Enrollment
§ 423.30 - Eligibility and enrollment.
§ 423.32 - Enrollment process.
§ 423.34 - Enrollment of low-income subsidy eligible individuals.
§ 423.36 - Disenrollment process.
§ 423.38 - Enrollment periods.
§ 423.40 - Effective dates.
§ 423.44 - Involuntary disenrollment from Part D coverage.
§ 423.46 - Late enrollment penalty.
§ 423.48 - Information about Part D.
§ 423.56 - Procedures to determine and document creditable status of prescription drug coverage.
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