HazmatTable logoHAZMATTABLE
Hazmat question

What is the difference between the HMT and Appendix A?

The Hazardous Materials Table provides shipping entries and fields such as identification number, proper shipping name, hazard class and packing group. App

Answer
The Hazardous Materials Table provides shipping entries and fields such as identification number, proper shipping name, hazard class and packing group. Appendix A lists hazardous substances and their reportable quantities.

Why people ask this

Most hazmat searches happen while someone is trying to make a real operational decision: classify a product, check a package quantity, verify paperwork, review an SDS, or confirm whether a waste or chemical appears in a federal table.

Look it up instead of digging through the PDF

Search the table, compare the listed RQ, and see the source in seconds.
CHECK A MATERIAL →

Related guide

Which Part of an SDS Tells Me if Something Is Hazmat? →

Reference basis: 49 CFR §172.101, the supplied Appendix A database, and PHMSA hazmat guidance. Verify current requirements for the specific shipment.