# Other Regulated Materials—Assignment of packing group.

**Citation:** 49 CFR 173.145  
**Type / status:** regulation / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2022-10-01  
**Published:** Not stated

Packing groups are not assigned to ORM-D materials.

## Document text

Packing groups are not assigned to ORM-D materials.

## Provenance

- Official: Yes
- Source: <https://www.govinfo.gov/app/details/CFR-2022-title49-vol2/CFR-2022-title49-vol2-sec173-145>
- Source ID: `govinfo-cfr`
- SHA-256: `6768598fe0fdd94f97e2500d528fad50a5dcf5fe1ef04960e294bf619eaf80ce`
- Retrieved: 2026-08-13T06:38:05.488Z
- Exported: 2026-08-24T02:51:37.131Z
- Document slug: `49-cfr-173-145`

### Source metadata

```json
{
  "part": "173",
  "section": "173.145",
  "subpart": "Subpart D—Definitions Classification, Packing Group Assignments and Exceptions for Hazardous Materials Other Than Class 1 and Class 7",
  "annualEdition": 2022,
  "revisedAsOf": "2022-10-01",
  "govInfoPackage": "CFR-2022-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"
}
```