# Use of Persons Who Fail or Refuse a Drug Test \[49 CFR 199.103\]

**Citation:** LAC 43:XIII §6303  
**Type / status:** regulation / current  
**Agency:** Louisiana Office of Conservation  
**Effective:** Not stated  
**Published:** Not stated

A. An operator may not knowingly use as an employee any person who: [49 CFR 199.103(a)] 1. fails a drug test required by this Chapter and the medical review officer makes a determination under DOT procedures; or [49 CFR 199.103(a)(1)] 2. refuses to take a drug test required by this Chapter. [49 CFR 

## Document text

A. An operator may not knowingly use as an employee any person who: [49 CFR 199.103(a)]

1. fails a drug test required by this Chapter and the medical review officer makes a determination under DOT procedures; or [49 CFR 199.103(a)(1)]

2. refuses to take a drug test required by this Chapter. [49 CFR 199.103(a)(2)]

B. Paragraph A.1 of this Section does not apply to a person who has: [49 CFR 199.103(b)]

1. passed a drug test under DOT procedures; [49 CFR 199.103(b)(1)]

2. been considered by the medical review officer in accordance with DOT procedures and been determined by a substance abuse professional to have successfully completed required education or treatment; and [49 CFR 199.103(b)(2)]

3. not failed a drug test required by this Chapter after returning to duty. [49 CFR 199.103(b)(3)]

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:751-757.

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 16:135 (February 1990), repromulgated LR 16:533 (June 1990), amended LR 30:1293 (June 2004).

## Provenance

- Official: Yes
- Source: <https://www.doa.la.gov/doa/osr/louisiana-administrative-code/>
- Source ID: `la-osr-lac`
- SHA-256: `78e53c8fb4e0f526081aca784aa270aa3a7b1018aaea0cc93b3b4fbf0f1bd51f`
- Retrieved: 2026-08-12T05:03:44.627Z
- Exported: 2026-08-22T21:37:59.126Z
- Document slug: `la-lac-43-xiii-6303`

### Source metadata

```json
{
  "jurisdiction": "US-LA",
  "part": "LAC 43:XIII",
  "section": "6303",
  "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 16:135 (February 1990), repromulgated LR 16:533 (June 1990), amended LR 30:1293 (June 2004).",
  "authorityNote": "AUTHORITY NOTE: Promulgated in accordance with R.S. 30:751-757.",
  "reserved": false,
  "references": [
    {
      "citation": "49 CFR 199.103",
      "referenceType": "cfr",
      "url": "https://www.ecfr.gov/current/title-49/part-199"
    }
  ],
  "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"
}
```