# Contents of written comments.

- **operation:** document
- **citation:** 49 CFR 190.321
- **title:** Contents of written comments.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** All written comments must be in English. Any interested person should submit as part of written comments all material considered relevant to any statement of fact. Incorporation of material by reference should be avoided; however, where necessary, such incorporated material must be identified by doc
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-190-321.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-190-321.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-190-321
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-190.321
**body:**

All written comments must be in English. Any interested person should submit as part of written comments all material considered relevant to any statement of fact. Incorporation of material by reference should be avoided; however, where necessary, such incorporated material must be identified by document title and page.

[Amdt. 190-16, 78 FR 58914, Sept. 25, 2013]
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- **body characters:** 366