CFR > Title 42 > Chapter IV > Subchapter D > Part 457 > Subpart H CFR > Title 42 > Chapter IV > Subchapter D > Part 457 > Subpart H – Substitution of Coverage Current as of: 2024 | Check for updates | Other versions § 457.800 Basis, scope, and applicability § 457.805 State plan requirement: Procedures to address substitution under group health plans § 457.810 Premium assistance programs: Required protections against substitution