CFR›Title 49›Subtitle B›Chapter I›Part 173›Subpart F›49 CFR 173.252 Citation49 CFR 173.252CorpusDaily eCFRDisplayed edition2026-09-30Last updated2026-09-30 § 173.252 xxxLink to an amendment published at 91 FR 61158, Sept. 28, 2026. Previous 173.251 § 173.251 Bulk packaging for ammonium nitrate emulsion, suspension, or gel.