CFR›Title 42›Chapter IV›Part 476›Subpart C ContainsSubject groups General Provisions–QIO Review FunctionsCorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart C—Review Responsibilities of Quality Improvement Organizations (QIOs) Subject Groups General Provisions General Provisions Sections 476.70–476.82 QIO Review Functions QIO Review Functions Sections 476.83–476.170 Source50 FR 15330, Apr. 17, 1985, unless otherwise noted. Redesignated at 64 FR 66279, Nov. 24, 1999. Previous A Subpart A—General Provisions