# -6 Manufacture.

- **operation:** document
- **citation:** 49 CFR 178.33-6
- **title:** -6 Manufacture.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** (a) By appliances and methods that will assure uniformity of completed containers; dirt and scale to be removed as necessary; no defect acceptable that is likely to weaken the finished container appreciably; reasonably smooth and uniform surface finish required.

(b) Seams when used must be as follo
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-178-33-6.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-178-33-6.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-178-33-6
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-178.33-6
**body:**

(a) By appliances and methods that will assure uniformity of completed containers; dirt and scale to be removed as necessary; no defect acceptable that is likely to weaken the finished container appreciably; reasonably smooth and uniform surface finish required.

(b) Seams when used must be as follows:

(1) Circumferential seams: By welding, swedging, brazing, soldering, or double seaming.

(2) Side seams: By welding, brazing, or soldering.

(c) Ends: The ends shall be of pressure design.

[29 FR 18823, Dec. 29, 1964, as amended by Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 1967]
- **truncated:** false
- **body characters:** 615