# Construction of Specification 21PF-1B overpacks.

**Citation:** 49 CFR 178.358-4  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2013-10-01  
**Published:** Not stated

(a) Each Specification 21PF-1 overpack for which construction began after March 31, 1989, must meet the requirements of Specification 21PF-1B, in conformance with drawings E-S-31536-J-P, and S1E-31536-J2-B of DOE CAPE-1662, Rev. 1, Supplement 1 (IBR, see § 171.7 of this subchapter).

(b) With the ex

## Document text

(a) Each Specification 21PF-1 overpack for which construction began after March 31, 1989, must meet the requirements of Specification 21PF-1B, in conformance with drawings E-S-31536-J-P, and S1E-31536-J2-B of DOE CAPE-1662, Rev. 1, Supplement 1 (IBR, see § 171.7 of this subchapter).

(b) With the exception of the closure nuts and bolts, all metal parts of the Specification 21PF-1B must be of stainless steel as shown on the drawings referred to in paragraph (a) of this section.

[Amdt. 178-90, 53 FR 36551, Sept. 20, 1988. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990; 68 FR 75757, Dec. 31, 2003]

## Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-2013-title49-vol3/CFR-2013-title49-vol3-sec178-358-4>
- Source ID: `govinfo-cfr`
- SHA-256: `0ce2179fba1afd4b6315f969f49c5c91c44c459520eb5b49508e991818f21dc8`
- Retrieved: 2026-08-12T01:41:52.959Z
- Exported: 2026-08-22T19:11:37.983Z
- Document slug: `49-cfr-178-358-4`

### Source metadata

```json
{
  "part": "178",
  "section": "178.358-4",
  "subpart": "Subpart K—Specifications for Packagings for Class 7 (Radioactive) Materials",
  "annualEdition": 2013,
  "revisedAsOf": "2013-10-01",
  "govInfoPackage": "CFR-2013-title49-vol3",
  "legalStatus": "official-annual-cfr-edition",
  "effectiveDateNote": null,
  "historicalAnchor": true,
  "historicalAnchorNote": "The section appears in an official annual CFR edition but is absent from the connected current eCFR corpus.",
  "jurisdiction": "US"
}
```