# d-1 Compliance.

- **operation:** document
- **citation:** 49 CFR 178.33d-1
- **title:** d-1 Compliance.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** Required in all details.

[81 FR 3685, Jan. 21, 2016]
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-178-33d-1.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-178-33d-1.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-178-33d-1
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-178.33d-1
**body:**

Required in all details.

[81 FR 3685, Jan. 21, 2016]
- **truncated:** false
- **body characters:** 53