# Flexible Bulk Container identification code.

**Citation:** 49 CFR 178.1005  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

The Flexible Bulk Container code designation is BK3.

## Document text

The Flexible Bulk Container code designation is BK3.

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-178.1005>
- Source ID: `ecfr`
- SHA-256: `f09fa1ed8adf0add14d46c2386642390d6fd304f41edf69cb681ef4adc932133`
- Retrieved: 2026-08-20T05:46:20.151Z
- Exported: 2026-08-23T10:41:32.153Z
- Document slug: `49-cfr-178-1005`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "178",
  "section": "178.1005",
  "subpart": "Subpart R—Flexible Bulk Container Standards",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```