CFR›Title 42›Chapter I›Part 84›Subpart C ContainsSections 84.20–84.24CorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 Subpart C—Fees Sections 84.20 § 84.20 Establishment of fees. 84.21 § 84.21 Fee calculation. 84.22 § 84.22 Fee administration. 84.23 § 84.23 Fee revision. 84.24 § 84.24 Authorization for additional examinations, inspections, tests, and fees. Source80 FR 3906, Jan. 26, 2015, unless otherwise noted. Previous I Subpart I—Gas Masks Next D Subpart D—Approval and Disapproval