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tools2ship / hazmat / Special Provisions / B-codes / B7

B7

49 CFR §172.102 special provision

B7

B-codes

Bulk packaging

Regulatory text

Safety relief devices are not authorized on multi-unit tank car tanks. Openings for safety relief devices on multi-unit tank car tanks shall be plugged or blank flanged.

Applies to

No UN entries in the local §172.101 dataset reference this provision.

← All B-codes ← All categories → ERG guide lookupCite: 49 CFR §172.102 — 49 CFR §172.102 (eCFR, fetched 2026-08-04 from ecfr.gov)