# b-5 Material.

**Citation:** 49 CFR 178.33b-5  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(a) The receptacles must be constructed of polyethylene terephthalate (PET), polyethylene napthalate (PEN), polyamide (Nylon) or a blend of PET, PEN, ethyl vinyl alcohol (EVOH) and/or Nylon.

(b) Material with seams, cracks, laminations or other injurious defects are forbidden.

[74 FR 2268, Jan. 14

## Document text

(a) The receptacles must be constructed of polyethylene terephthalate (PET), polyethylene napthalate (PEN), polyamide (Nylon) or a blend of PET, PEN, ethyl vinyl alcohol (EVOH) and/or Nylon.

(b) Material with seams, cracks, laminations or other injurious defects are forbidden.

[74 FR 2268, Jan. 14, 2009]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-178.33b-5>
- Source ID: `ecfr`
- SHA-256: `e01c4af1dd2e8c2421e73a6ea9862c78216e66e2fb04bdb6285dffe92d243f35`
- Retrieved: 2026-08-20T05:46:20.151Z
- Exported: 2026-08-23T17:56:49.355Z
- Document slug: `49-cfr-178-33b-5`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "178",
  "section": "178.33b-5",
  "subpart": "Subpart B—Specifications for Inside Containers, and Linings",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```