# Combustible materials.

- **operation:** document
- **citation:** 49 CFR 193.2117
- **title:** Combustible materials.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** Not available
- **effective on:** 1999-10-01
- **summary:** Combustible materials are not permitted for the construction of buildings, plant equipment, and the foundations and supports of buildings and plant equipment in areas where ignition of the material would worsen an emergency. However, limited combustible materials may be used when the use of noncombu
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-193-2117.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-193-2117.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-193-2117
- **source url:** https://www.govinfo.gov/app/details/CFR-1999-title49-vol3/CFR-1999-title49-vol3-sec193-2117
**body:**

Combustible materials are not permitted for the construction of buildings, plant equipment, and the foundations and supports of buildings and plant equipment in areas where ignition of the material would worsen an emergency. However, limited combustible materials may be used when the use of noncombustible materials is impractical.
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- **body characters:** 332