# Required markings.

**Citation:** 49 CFR 178.356-4  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2013-10-01  
**Published:** Not stated

(a) Marking must be as prescribed in § 178.3.

(b) Marking on the outside of each overpack must be as follows:

(1) “USA-DOT-20PF-1” or “-2,” as appropriate, and if the entire liner is made of stainless steel, additional marking such as “3041-SS” to indicate the type of stainless steel used.

(2) “T

## Document text

(a) Marking must be as prescribed in § 178.3.

(b) Marking on the outside of each overpack must be as follows:

(1) “USA-DOT-20PF-1” or “-2,” as appropriate, and if the entire liner is made of stainless steel, additional marking such as “3041-SS” to indicate the type of stainless steel used.

(2) “TARE WT: xxx lbs.” where xxx is the tare weight of the assembled overpack without the inner container.

(3) Year of manufacture.

[Amdt. 178-35, 39 FR 45247, Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990, as amended at 63 FR 37462, July 10, 1998]

## Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-2013-title49-vol3/CFR-2013-title49-vol3-sec178-356-4>
- Source ID: `govinfo-cfr`
- SHA-256: `0682b491cf2b34a5e3acea7628552db37ba187a0aeda9badeabc4f03aaa5a3a7`
- Retrieved: 2026-08-12T01:41:52.959Z
- Exported: 2026-08-23T12:51:05.521Z
- Document slug: `49-cfr-178-356-4`

### Source metadata

```json
{
  "part": "178",
  "section": "178.356-4",
  "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"
}
```