49 CFR 172 Special Provision B59 (B-Codes)
These provisions apply only to bulk packagings. Except as otherwise provided in this subchapter, these special provisions do not apply to UN portable tanks or IBCs.
| Code | B59 |
|---|---|
| Description | Water-tight, sift-proof, closed-top, metal-covered hopper cars are also authorized provided that the lading is covered with a nitrogen blanket. |
| HazMat with this Code |