referencesource/dot-hazmat-placarding-thresholds

DOT hazmat placarding requirements by hazard class (any-quantity vs. 1,001 lb threshold) Canonical, always-current version: https://referencesource.org/dot-hazmat-placarding-thresholds/ Machine-readable: https://referencesource.org/dot-hazmat-placarding-thresholds/data.json — this mirror is a point-in-time copy. Last verified: 2026-10-06 Stale after: 2027-08-19 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not) Records: 23 A… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/dot-hazmat-placarding-thresholds.