# b-2 Type and size.

- **operation:** document
- **citation:** 49 CFR 178.33b-2
- **title:** b-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.

(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.

[74 FR 2268, Jan. 14, 2009]
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/49-cfr-178-33b-2.json
- **markdown:** https://regulus.evalyn.ai/document/49-cfr-178-33b-2.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-178-33b-2
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-178.33b-2
**body:**

(a) Single-trip inside containers.

(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.

[74 FR 2268, Jan. 14, 2009]
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- **body characters:** 220