CFR›Title 14›Chapter II›Part 293›Subpart C ContainsSections 293.20–293.22CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart C—Effect of Exemption Sections 293.20 § 293.20 Rule of construction. 293.21 § 293.21 Incorporation of contract terms by reference. 293.22 § 293.22 Effectiveness of tariffs on file. Previous B Subpart B—Exemption From Filing Tariffs