# General Requirements \[49 CFR 192.503\]

**Citation:** LAC 43:XIII §2303  
**Type / status:** regulation / current  
**Agency:** Louisiana Office of Conservation  
**Effective:** Not stated  
**Published:** Not stated

A. No person may operate a new segment of pipeline, or return to service a segment of pipeline that has been relocated or replaced, until: [49 CFR 192.503(a)] 1. it has been tested in accordance with this Chapter and §2719 to substantiate the maximum allowable operating pressure; and [49 CFR 192.503

## Document text

A. No person may operate a new segment of pipeline, or return to service a segment of pipeline that has been relocated or replaced, until: [49 CFR 192.503(a)]

1. it has been tested in accordance with this Chapter and §2719 to substantiate the maximum allowable operating pressure; and [49 CFR 192.503(a)(1)]

2. each potentially hazardous leak has been located and eliminated. [49 CFR 192.503(a)(2)]

B. The test medium must be liquid, air, natural gas, or inert gas that is: [49 CFR 192.503(b)]

1. compatible with the material of which the pipeline is constructed; [49 CFR 192.503(b)(1)]

2. relatively free of sedimentary materials; and [49 CFR 192.503(b)(2)]

3. except for natural gas, nonflammable. [49 CFR 192.503(b)(3)]

C. Except as provided in §2305.A, if air, natural gas, or inert gas is used as the test medium, the following maximum hoop stress limitations apply. [49 CFR 192.503(c)]

Class Location

Maximum Hoop Stress Allowed as Percentage of SMYS

Natural Gas

Air or Inert Gas

1

80

80

2

30

75

3

30

50

4

30

40

D. Each joint used to tie in a test segment of pipeline is excepted from the specific test requirements of this Chapter, but each non-welded joint must be leak tested at not less than its operating pressure. [49 CFR 192.503(d)]

E. If a component other than pipe is the only item being replaced or added to a pipeline, a strength test after installation is not required, if the manufacturer of component certifies that: [49 CFR 192.503(e)]

1. the component was tested to at least the pressure required for the pipeline to which it is being added; [49 CFR 192.503(e)(1)]

2. the component was manufactured under a quality control system that ensures that each item manufactured is at least equal in strength to a prototype and that the prototype was tested to at least the pressure required for the pipeline to which it is being added; or [49 CFR 192.503(e)(2)]

3. the component carries a pressure rating established through applicable ASME/ANSI, Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. (MSS) specifications, or by unit strength calculations as described in §1103. [49 CFR 192.503(e)(3)]

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:501 et seq.

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 9:237 (April 1983), amended LR 10:530 (July 1984), LR 30:1256 (June 2004), LR 44:1041 (June 2018).

## Provenance

- Official: Yes
- Source: <https://www.doa.la.gov/doa/osr/louisiana-administrative-code/>
- Source ID: `la-osr-lac`
- SHA-256: `ca06181550cec22cedc76b2d05f79e902447cb997019cade54a49dffccd7a893`
- Retrieved: 2026-08-12T05:03:44.627Z
- Exported: 2026-08-25T02:09:27.171Z
- Document slug: `la-lac-43-xiii-2303`

### Source metadata

```json
{
  "jurisdiction": "US-LA",
  "part": "LAC 43:XIII",
  "section": "2303",
  "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 9:237 (April 1983), amended LR 10:530 (July 1984), LR 30:1256 (June 2004), LR 44:1041 (June 2018).",
  "authorityNote": "AUTHORITY NOTE: Promulgated in accordance with R.S. 30:501 et seq.",
  "reserved": false,
  "references": [
    {
      "citation": "49 CFR 192.503",
      "referenceType": "cfr",
      "url": "https://www.ecfr.gov/current/title-49/part-192"
    },
    {
      "citation": "LAC 43:XIII §2719",
      "referenceType": "louisiana-administrative-code",
      "url": "https://www.doa.la.gov/doa/osr/louisiana-administrative-code/"
    },
    {
      "citation": "LAC 43:XIII §2305",
      "referenceType": "louisiana-administrative-code",
      "url": "https://www.doa.la.gov/doa/osr/louisiana-administrative-code/"
    },
    {
      "citation": "LAC 43:XIII §1103",
      "referenceType": "louisiana-administrative-code",
      "url": "https://www.doa.la.gov/doa/osr/louisiana-administrative-code/"
    }
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  "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"
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```