# Hydrogen, compressed (ID 1049)

- **operation:** document
- **citation:** ERG 2024 ID 1049
- **title:** Hydrogen, compressed (ID 1049)
- **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 Hydrogen, compressed (ID 1049) to Guide 115: Gases - Flammable (Including Refrigerated Liquids).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1049-hydrogen-compressed.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1049-hydrogen-compressed.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-erg-2024-material-id1049-hydrogen-compressed
- **source url:** https://www.phmsa.dot.gov/erg/material?materialName=Hydrogen%2C+compressed&materialUn=1049
**body:**

ERG identification number: 1049.
Material: Hydrogen, compressed.
Assigned response guide: Guide 115, Gases - Flammable (Including Refrigerated Liquids).
The ERG index does not mark this entry with the P polymerization-hazard indicator.
- **truncated:** false
- **body characters:** 235