CFR›Title 42›Chapter IV›42 CFR Part 406 Citation42 CFR Part 406ContainsSubparts Subpart A–Subpart DCorpusDaily eCFRDisplayed edition2026-08-05Last updated2026-08-05 PART 406—HOSPITAL INSURANCE ELIGIBILITY AND ENTITLEMENT Subparts Subpart A Subpart A—General Provisions Subpart B Subpart B—Hospital Insurance Without Monthly Premiums Subpart C Subpart C—Premium Hospital Insurance Subpart D Subpart D—Special Circumstances That Affect Entitlement to Hospital Insurance Authority42 U.S.C. 1302, 1395i-2, 1395i-2a, 1395p, 1395q and 1395hh.Source48 FR 12536, Mar. 25, 1983, unless otherwise noted. Redesignated at 51 FR 41338, Nov. 14, 1986.