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HazmatTable Guides

Understand the rule.
Then do the work.

Practical guides for figuring out what a material is, whether it has to be reported, how to read a safety data sheet, or how to prep a hazmat shipment.

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What Is the Hazmat Table?

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What Is a UN Number?

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The 9 DOT Hazard Classes, Explained

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What Is a Packing Group?

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RQ vs. Hazard Class: What's the Difference?

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What Is a Reportable Quantity (RQ)?

A reportable quantity, or RQ, is the quantity assigned to a hazardous substance in the federal hazardous-substance list. Appendix A to
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How Do I Find the RQ for a Chemical?

The fastest method is to search the hazardous substance by its regulatory or chemical name and confirm the listed quantity in Appendix
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Does My Shipment Exceed the Reportable Quantity?

Compare the quantity of the listed hazardous substance in one completed package with the RQ assigned to that substance.
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How Do I Calculate RQ for a Chemical Mixture?

For a mixture, calculate the actual quantity of each listed hazardous substance present and compare that constituent quantity with its
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Does RQ Apply Per Package or Per Shipment?

For hazardous-substance determination under the HMR, PHMSA interpretations focus the RQ comparison on the quantity of the hazardous sub
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What Does RQ Mean on a Hazmat Shipping Paper?

“RQ” is additional information used when the material is a hazardous substance meeting the applicable quantity criteria.
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When Do I Put RQ on a Hazmat Shipping Description?

Use the RQ designation when the material meets the HMR hazardous-substance criteria and the applicable shipping-paper rules require the
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How Do I Find a Proper Shipping Name?

The proper shipping name comes from the Hazardous Materials Table in 49 CFR §172.101, not from a marketing name or whatever name is eas
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How Do I Find a UN or NA Number?

The identification number is part of the basic hazmat shipping description and is found with the applicable entry in the Hazardous Mate
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What Is a Hazmat Basic Shipping Description?

PHMSA describes the basic shipping description as the identification number, proper shipping name, hazard class or division, and packin
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How Do I Read an SDS for Hazmat Shipping?

An SDS can help identify the product, ingredients and transportation information, but it does not replace the shipper’s responsibility
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Which Part of an SDS Tells Me if Something Is Hazmat?

Section 14 is the first place many shippers look for transportation information, while Section 3 helps identify regulated constituents
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How Do I Determine Hazmat From an SDS?

Use the SDS as evidence about the material, then apply the Hazardous Materials Regulations rather than assuming the SDS alone makes the
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What Are F, K and D Hazardous Waste Codes?

Appendix A includes waste-stream entries identified by D, F and K numbers in addition to individual chemical names.
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Hazmat Shipping Checklist

A good shipping workflow moves from identification and classification into packaging, hazard communication and documentation.
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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
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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
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Hazmat Shipping Paper Guide

A hazmat shipping paper communicates the regulated material using the required basic description plus any additional information requir