# Required marking.

**Citation:** 49 CFR 178.364-5  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2003-10-01  
**Published:** Not stated

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

(b) Marking on the outside of each overpack must include the following:

(1) “USA-DOT 21WC” and “TYPE B” as appropriate.

(2) [Reserved]

[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990, as amended at

## Document text

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

(b) Marking on the outside of each overpack must include the following:

(1) “USA-DOT 21WC” and “TYPE B” as appropriate.

(2) [Reserved]

[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated 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-2003-title49-vol2/CFR-2003-title49-vol2-sec178-364-5>
- Source ID: `govinfo-cfr`
- SHA-256: `afc824c90fc2b757e519c614aea5e4b1fe3159bf0c902ded2cdf9ff4c50866ba`
- Retrieved: 2026-08-13T06:37:29.399Z
- Exported: 2026-08-23T23:14:48.316Z
- Document slug: `49-cfr-178-364-5`

### Source metadata

```json
{
  "part": "178",
  "section": "178.364-5",
  "subpart": "Subpart K—Specifications for Packagings for Class 7 (Radioactive) Materials",
  "annualEdition": 2003,
  "revisedAsOf": "2003-10-01",
  "govInfoPackage": "CFR-2003-title49-vol2",
  "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"
}
```