# Protective Enclosures \[49 CFR 193.2905\]

**Citation:** LAC 43:XIII §8505  
**Type / status:** regulation / current  
**Agency:** Louisiana Office of Conservation  
**Effective:** Not stated  
**Published:** Not stated

A. The following facilities must be surrounded by a protective enclosure: 1. storage tanks; [49 CFR 2905(a)(1)] 2. impounding systems; [49 CFR 2905(a)(2)] 3. vapor barriers; [49 CFR 2905(a)(3)] 4. cargo transfer systems; [49 CFR 2905(a)(4)] 5. process, liquefaction, and vaporization equipment; [49 C

## Document text

A. The following facilities must be surrounded by a protective enclosure:

1. storage tanks; [49 CFR 2905(a)(1)]

2. impounding systems; [49 CFR 2905(a)(2)]

3. vapor barriers; [49 CFR 2905(a)(3)]

4. cargo transfer systems; [49 CFR 2905(a)(4)]

5. process, liquefaction, and vaporization equipment; [49 CFR 2905(a)(5)]

6. control rooms and stations; [49 CFR 2905(a)(6)]

7. control systems; [49 CFR 2905(a)(7)]

8. fire control equipment; [49 CFR 2905(a)(8)]

9. security communications systems; and [49 CFR 2905(a)(9)]

10. alternative power sources. [49 CFR 2905(a)(10)]

B. The protective enclosure may be one or more separate enclosures surrounding a single facility or multiple facilities.

C. Ground elevations outside a protective enclosure must be graded in a manner that does not impair the effectiveness of the enclosure. [49 CFR 193.2905(b)]

D. Protective enclosures may not be located near features outside of the facility, such as trees, poles, or buildings, which could be used to breach the security. [49 CFR 193.2905(c)]

E. At least two accesses must be provided in each protective enclosure and be located to minimize the escape distance in the event of emergency. [49 CFR 193.2905(d)]

F. Each access must be locked unless it is continuously guarded. During normal operations, an access may be unlocked only by persons designated in writing by the operator. During an emergency, a means must be readily available to all facility personnel within the protective enclosure to open each access. [49 CFR 193.2905(e)]

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:551.C.

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 44:1061 (June 2018).

## Provenance

- Official: Yes
- Source: <https://www.doa.la.gov/doa/osr/louisiana-administrative-code/>
- Source ID: `la-osr-lac`
- SHA-256: `bd5e5fe41204718b240a3194601ae74ad5cca41f0ab42a9e2305dc51c408d2cb`
- Retrieved: 2026-08-12T05:03:44.627Z
- Exported: 2026-08-24T06:06:53.375Z
- Document slug: `la-lac-43-xiii-8505`

### Source metadata

```json
{
  "jurisdiction": "US-LA",
  "part": "LAC 43:XIII",
  "section": "8505",
  "pipelineScope": "louisiana-pipeline-safety",
  "legalScope": "Louisiana Office of Conservation pipeline-safety rules governing covered transportation of gas, gas reporting, incorporated and modified federal gas-pipeline requirements, drug and alcohol testing, and LNG facilities.",
  "applicabilityCaveat": "Part XIII applies only within the scope of its certification or agreement, jurisdictional and facility limitations, and section-specific exclusions. Determine operator status, commodity, intrastate or interstate jurisdiction, coastal or Outer Continental Shelf location, gathering classification, LNG status, and federal preemption before applying a provision.",
  "incorporationCaveat": "Part XIII incorporates and modifies portions of 49 CFR Parts 40, 191, 192, 193, and 199. Bracketed federal citations identify the source provision, but Louisiana numbering and text control only within the state rule's scope; consult both current Louisiana and applicable federal text.",
  "historicalNote": "HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 44:1061 (June 2018).",
  "authorityNote": "AUTHORITY NOTE: Promulgated in accordance with R.S. 30:551.C.",
  "reserved": false,
  "references": [
    {
      "citation": "49 CFR 290",
      "referenceType": "cfr",
      "url": "https://www.ecfr.gov/current/title-49/part-290"
    },
    {
      "citation": "49 CFR 193.2905",
      "referenceType": "cfr",
      "url": "https://www.ecfr.gov/current/title-49/part-193"
    }
  ],
  "sourceEdition": "December 2025",
  "artifactPath": "data/sources/louisiana/louisiana-lac-title-43-parts-ix-xi-xiii.docx",
  "artifactSha256": "568d6b8b3cc244c67a0c93c040442fa53a1bbdafcb688b253cfa707d84d64259",
  "publicationStatus": "Current state-certified Louisiana Administrative Code compilation; section-level effective dates are not inferred from compilation or monthly history citations.",
  "rights": "The Louisiana Administrative Code is the state-certified publication. Preserve Office of State Register attribution and review Louisiana website terms, agency marks, incorporated standards, and third-party material before redistribution.",
  "region": "LA"
}
```