CFR›Title 49›Subtitle B›Chapter I›Part 180›Subpart D ContainsSections 180.350–180.352CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart D—Qualification and Maintenance of IBCs Sections 180.350 § 180.350 Applicability and definitions. 180.351 § 180.351 Qualification of IBCs. 180.352 § 180.352 Requirements for retest and inspection of IBCs. Previous C Subpart C—Qualification, Maintenance and Use of Cylinders Next E Subpart E—Qualification and Maintenance of Cargo Tanks