CFR›Title 49›Subtitle B›Chapter I›Part 178›Subpart B›49 CFR 178.33b Citation49 CFR 178.33bCorpusDaily eCFRDisplayed edition2026-09-15Last updated2026-09-15 § 178.33b Specification 2S; inner nonrefillable plastic receptacles. Previous 178.33a-9 § 178.33a-9 Marking. Next 178.33b-1 § 178.33b-1 Compliance.