HazmatTable Guide
How to Check a Chemical Before Shipping It
Before a chemical moves, the shipper needs to know what the material is, how it is classified and which HMR requirements attach to that classification.
Short answer
Before a chemical moves, the shipper needs to know what the material is, how it is classified and which HMR requirements attach to that classification.
Before a chemical moves, the shipper needs to know what the material is, how it is classified and which HMR requirements attach to that classification.
Why this matters
Appendix A is only one step. It answers the hazardous-substance/RQ question; the Hazardous Materials Table and other HMR sections answer other parts of the shipment.
A better workflow
Start with a reliable identity and SDS, match the HMT entry, check Appendix A, quantify any listed constituent, then verify packaging and hazard-communication requirements.
Check your material in HazmatTable
Search the table, compare the listed RQ, and see the source in seconds.
What HazmatTable helps with
- Search a chemical, synonym, waste code or radionuclide.
- See the listed RQ and units without scanning a long PDF.
- Preserve important Appendix A footnotes and source context.
- Compare an entered package quantity with the listed RQ.
- Continue into related shipping and classification guides.
Important: HazmatTable is a reference and workflow tool, not a legal certification of a shipment. The shipper must verify the current HMR and the actual material, quantity, packaging and mode.
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Authoritative references: 49 CFR §172.101 / Appendix A and PHMSA hazmat guidance. PHMSA Hazmat · Appendix A source used for this database