The Emergency Response Guidebook, and why it rides in every truck
PHMSA publishes the orange book free, in three languages, with a mobile app. It is written for the first minutes of a hazmat incident — including one that is not yours.
- Author
- Relay Dispatch Desk
- Published
- 17 Aug 2026
- Verified
- 15 Aug 2026
- Re-checked
- on-new-edition
Key takeaways
- The guidebook is free from PHMSA as a PDF and as a mobile app, in English, French and Spanish.
- It is written for the first responder arriving at an incident, which on a highway is often a driver.
- You use it by identifying the material, finding the guide number, and reading the initial isolation distance.
- Carrying it is worth doing whether or not you haul placarded loads.
Who needs it
Everybody with a truck. The argument for carrying the guidebook is not that you might be hauling hazardous materials — it is that you might be the first vehicle to stop at somebody else's incident, several minutes before anyone with a radio arrives.
How you actually use it
- Identify the material from the placard, the orange panel number, or the shipping paper.
- Look up the guide number that identification gives you.
- Read the initial isolation and protective action distances before you move anybody, including yourself.
- Act on the first-minute instructions — they are written to be followed without training.
The guidebook is produced jointly by the United States, Canada and Mexico, which is why the same orange book works across the continent.
Sources
- PHMSA · Emergency Response Guidebook (ERG) 2024 · accessed 15 Aug 2026
- PHMSA · DOT Chart 17 — Hazardous Materials Markings, Labeling and Placarding Guide · accessed 15 Aug 2026
Re-verified on-new-edition. Educational summary — the regulation controls. Not legal advice.
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