HazmatTable Guide
How to Determine Whether an RQ Applies to Your Shipment
An RQ applies to the hazardous-substance determination when a listed substance is present in the required quantity in a package and the other regulatory criteria are met.
Short answer
An RQ applies to the hazardous-substance determination when a listed substance is present in the required quantity in a package and the other regulatory criteria are met.
An RQ applies to the hazardous-substance determination when a listed substance is present in the required quantity in a package and the other regulatory criteria are met.
Why this matters
The biggest workflow improvement is separating three questions: Is the substance listed? What is its RQ? How much of that substance is actually in this package?
A better workflow
HazmatTable is designed to answer the first two instantly and help with the arithmetic for the third.
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.
Authoritative references: 49 CFR §172.101 / Appendix A and PHMSA hazmat guidance. PHMSA Hazmat · Appendix A source used for this database