Reference tool
Field Check
Add the hazardous materials from a shipping paper or vehicle load to your list, then see aggregated placard and label requirements and segregation rules for the whole load — based on the U.S. Hazardous Materials Regulations (49 CFR).
Who it is for
- Commercial vehicle and hazmat inspectors reviewing papers, labels, and placards at roadside
- Carriers and drivers checking mixed loads before transport
- Anyone who needs a quick 49 CFR lookup for multiple UN entries on one screen
What this view shows
- Substance data from 49 CFR §172.101 (Hazardous Materials Table)
- Placards & labels guidance per 49 CFR §172.504 and column (6)
- Load segregation per 49 CFR §177.848 when two or more hazard classes are present
This is an informational reference only. It does not record inspections, issue citations, or replace your agency's official forms. Verify all decisions against current 49 CFR and your program requirements.
Add hazardous material
My hazardous materials (0)
No materials yet. Enter a UN number or substance name above and tap Add.
Segregation (§177.848)
Add at least two materials (or hazard classes) to evaluate load segregation.