# Calcium oxide (ID 1910)

- **operation:** document
- **citation:** ERG 2024 ID 1910
- **title:** Calcium oxide (ID 1910)
- **source type:** guidance
- **agency:** U.S. DOT / Transport Canada / SICT
- **status:** guidance
- **official:** true
- **published on:** 2024-04-04
- **effective on:** Not available
- **summary:** ERG2024 assigns Calcium oxide (ID 1910) to Guide 157: Substances - Toxic and/or Corrosive (Non-Combustible/Water-Sensitive).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1910-calcium-oxide.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1910-calcium-oxide.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1910-calcium-oxide
- **source url:** https://www.phmsa.dot.gov/erg/material?materialName=Calcium+oxide&materialUn=1910
**body:**

ERG identification number: 1910.
Material: Calcium oxide.
Assigned response guide: Guide 157, Substances - Toxic and/or Corrosive (Non-Combustible/Water-Sensitive).
The ERG index does not mark this entry with the P polymerization-hazard indicator.
- **truncated:** false
- **body characters:** 247