Free hazmat compliance references.
PHMSA publishes the regulations. We publish the spreadsheets. Drivers, dispatchers, fleet safety leads, and compliance officers — everything we've made available, in one place. Free, CC BY 4.0, refreshed when PHMSA amends.
Quick UN Lookup
Type a UN/NA number, instantly see the proper shipping name, hazard class, packing group, placard, and ERG guide — in your browser, no download, no email, no signup. Reference-only; scan your paper for the full inspection-ready check.
DOT Hazmat Table
The full Hazardous Materials Table, byte-verified against the eCFR HTML across all 14 columns: Symbols, PSN, Hazard Class, ID Number, PG, Label Codes, Special Provisions, Packaging, Quantity Limits, Vessel Stowage.
2024 ERG UN→Guide Lookup
The yellow-pages UN/NA → guide-number index from the official 2024 ERG, plus guide reference for every populated guide. Includes a Quick Lookup tab — type a UN number, get the guide instantly.
Segregation Matrix
The full hazardous-materials segregation matrix — which hazard classes you can and can't load together — plus the legend, the §177.848(c) restrictions, and the Class 1 explosive compatibility table. Parsed from the authoritative eCFR, cross-checked against our engine.
Hazardous Substances · Reportable Quantities
The CERCLA list of hazardous substances and their Reportable Quantities (RQs) — what triggers an EPA release notification — plus the radionuclide RQs, each row carrying its CASRN and RCRA waste number. DOT hazard class is filled in where the substance name matches a DOT proper shipping name. Parsed from the authoritative eCFR.
How these are verified
Every entry in every file traces to its authoritative published source (eCFR HTML for 49 CFR data, the official PHMSA-published PDF for the 2024 ERG). Each file's About sheet records the source URL, snapshot date, and SHA-256 of the parsed data — so you can hash any file you download, compare it to the published source, and audit the verification chain end-to-end yourself.
The same discipline applies to the engine behind the product: every section of 49 CFR the scanner relies on carries a per-section eCFR currency date, re-verified on a standing quarterly commitment, and every determination is stamped with the dates it ran under. See how we keep the regulatory data current →
Need more than reference data?
HaulGuard scans the Bill of Lading, generates the placards under § 172.504, checks segregation under § 177.848, and produces a tamper-evident audit trail your driver can present at inspection. The files above are inputs. The product is the engine.
Scan your paper — first scan free