# Covered systems.

**Citation:** 49 CFR 193.2167  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

A covered impounding system is prohibited except for concrete wall designed tanks where the concrete wall is an outer wall serving as a dike.

[Amdt. 193-17, 65 FR 10959, Mar. 1, 2000]

## Document text

A covered impounding system is prohibited except for concrete wall designed tanks where the concrete wall is an outer wall serving as a dike.

[Amdt. 193-17, 65 FR 10959, Mar. 1, 2000]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-193.2167>
- Source ID: `ecfr`
- SHA-256: `40933ac1f8bd865926dd361d0311a472c7ea36277e41a81a05f73be7577089e5`
- Retrieved: 2026-08-20T05:54:35.243Z
- Exported: 2026-08-24T04:41:09.987Z
- Document slug: `49-cfr-193-2167`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "193",
  "section": "193.2167",
  "subpart": "Subpart C—Design",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```