# Acetaldehyde (ID 1089)

- **operation:** document
- **citation:** ERG 2024 ID 1089
- **title:** Acetaldehyde (ID 1089)
- **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 Acetaldehyde (ID 1089) to Guide 129: Flammable Liquids (Water-Miscible/Noxious).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1089-acetaldehyde.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1089-acetaldehyde.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1089-acetaldehyde
- **source url:** https://www.phmsa.dot.gov/erg/material?materialName=Acetaldehyde&materialUn=1089
**body:**

ERG identification number: 1089.
Material: Acetaldehyde.
Assigned response guide: Guide 129, Flammable Liquids (Water-Miscible/Noxious).
The ERG index marks this entry with P for a polymerization hazard under certain conditions.
- **truncated:** false
- **body characters:** 228