Bulk Containers for Flammable Solids
Pipeline and Hazardous Materials Safety Administration · Jul 27, 1993 · Reference No. 93-0239
Interprets: 49 CFR § 173.240
Reggie’s quick take
The agency says a metal bulk bin, Model No. OS2020I, is an allowed closed bulk bin for flammable solids, n.o.s., UN1325, in Packing Group II or III. The bin is a sift-proof, non-DOT specification container. Under § 173.240(c), that makes it allowed for these flammable solids.
Written by AI (Claude) on Oct 22, 2026. Robots make mistakes and leave things out, so the letter below is what counts. Not legal advice.
This is in response to your letter regarding use of bulk containers for flammable solids.
For "Flammable solids, n.o.s., UN1325," PG II and PG III, § 173.240(c) authorizes "closed bulk bins". The metal bin, Model No. OS2020I, described in your letter is a "sift-proof non-DOT specification" closed bulk bin and is authorized under paragraph (c) for flammable solids.
If we can be of further assistance, please let us know.
A letter of interpretation applies the regulations to the facts the requester described. It isn’t a regulation and isn’t legal advice. The agency’s copy.