# CUSTOMER'S PIPING

**Citation:** NCUC Rule R6-40  
**Type / status:** regulation / current  
**Agency:** North Carolina Utilities Commission  
**Effective:** Not stated  
**Published:** Not stated

Each customer's piping system shall be tested for leaks before service is turned on. (1) Pressure Test. - If local authorities do not require the pressure test of customer's piping, as set forth in section 2.12, "Test of Piping for Tightness," NFPA Standard No. 54, the utility shall advise the custo

## Document text

Each customer's piping system shall be tested for leaks before service is turned on.

(1) Pressure Test. - If local authorities do not require the pressure test of customer's piping, as set forth in section 2.12, "Test of Piping for Tightness," NFPA Standard No. 54, the utility shall advise the customer of the desirability of having his plumber conduct such a test.

(2) Leakage Test. - Before turning on a gas meter at any location, the piping system supplied shall be tested for leaks by a method at least equal to that described in section 2.13, "Leakage Check after Gas Turn-On," in the latest edition of the American Standard Installation of Gas Appliances and Gas Piping in Buildings, ASA Z21.30.

(NCUC Docket No. M-100, Sub 75, 10/27/77.)

## Provenance

- Official: Yes
- Source: <https://www.ncuc.gov/ncrules/Chapter06.pdf>
- Source ID: `nc-ncuc-chapter-6`
- SHA-256: `1c73cf774dd4bd079c38ac8aba4d12b50893901fd20f4215aa963c96e1c4f3f2`
- Retrieved: 2026-08-20T09:05:56.011Z
- Exported: 2026-08-23T09:26:42.322Z
- Document slug: `nc-ncuc-r6-40`

### Source metadata

```json
{
  "jurisdiction": "US-NC",
  "chapter": 6,
  "rule": "R6-40",
  "category": "gas-safety",
  "corpusScope": "bounded-ncuc-chapter-6-pipeline-and-materially-adjacent-gas-safety",
  "selectedRuleCount": 23,
  "chapterHeadingCount": 101,
  "statutoryAuthority": "N.C. Gen. Stat. § 62-50",
  "incorporatedFederalStandards": [],
  "references": [],
  "scopeCaveat": "This is a bounded Chapter 6 pipeline/gas-safety corpus, not the entire 122-page Natural Gas chapter and not a claim to all North Carolina pipeline law. It preserves complete selected rules while excluding broader tariff, billing, customer-relations, metering-administration, service-territory, accounting, expansion-funding, and economic-development rules, plus repealed and reserved provisions.",
  "applicabilityCaveat": "Applicability depends on NCUC jurisdiction under G.S. 62-50, operator and facility status, the rule-specific definition of utility, federal/state jurisdiction and preemption, Commission exemptions or orders, and incorporated federal standards. Chapter 6 also reaches interstate natural-gas companies only insofar as the Commission has safety jurisdiction; it does not establish state jurisdiction over every pipeline or customer-owned installation in North Carolina.",
  "incorporationCaveat": "R6-39 and R6-41 incorporate federal pipeline requirements and amendments, including 49 CFR Parts 191, 192, 193, 198, and 199, with stated North Carolina modifications. Other selected rules refer to privately published ASME, NFPA, ASA, AGA, NARUC, and testing standards. This connector preserves references but does not reproduce or determine the current content, licensing terms, or legal effect of incorporated material.",
  "publicationCaveat": "The source is the current agency-hosted Chapter 6 compilation retrieved on the recorded fetch date. NCUC warns on its rules index that posting can lag an order adopting or revising a rule. Publisher history dates are retained as history entries and are not represented as effective dates unless the source expressly says so.",
  "rights": "North Carolina government text and official source links are preserved for provenance. Public availability does not determine rights in agency seals, site presentation, privately authored standards, or incorporated third-party material; redistribution and downstream use require rights review.",
  "rightsReviewRequired": true,
  "region": "NC"
}
```