# -2 Type and size.

- **operation:** document
- **citation:** 49 CFR 178.33-2
- **title:** -2 Type and size.
- **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) Single-trip inside containers. Must be seamless, or with seams, welded, soldered, brazed, double seamed, or swedged.

(b) The maximum capacity of containers in this class shall not exceed one liter (61.0 cubic inches). The maximum inside diameter shall not exceed 3 inches.

[29 FR 18813, Dec. 29
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-178-33-2.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-178-33-2.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-178-33-2
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-178.33-2
**body:**

(a) Single-trip inside containers. Must be seamless, or with seams, welded, soldered, brazed, double seamed, or swedged.

(b) The maximum capacity of containers in this class shall not exceed one liter (61.0 cubic inches). The maximum inside diameter shall not exceed 3 inches.

[29 FR 18813, Dec. 29, 1964, as amended by Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 1967, and amended by Amdt. 178-101, 58 FR 50237, Sept. 24, 1993; 66 FR 45386, Aug. 28, 2001]
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