# En 510.01 Jurisdiction Scope and Application of Authority

**Citation:** N.H. Admin. R. En 510.01  
**Type / status:** regulation / current  
**Agency:** New Hampshire Department of Energy  
**Effective:** 2023-10-25  
**Published:** 2023-10-25

En 510.01 Jurisdiction Scope and Application of Authority.

## Document text

En 510.01 Jurisdiction Scope and Application of Authority.

(a) Pursuant to RSA 370:2 the department shall enforce safety standards and practices for utilities, referred to in En 506.01, consistent with the Natural Gas Pipeline Safety Act which is set forth at 49 U.S.C. § 60101, et seq.

(b) In enforcing safety standards and practices the department shall consider:

(1) Pipeline safety data;

(2) The appropriateness and reasonableness of a safety standard applied to a particular incident or circumstances; and

(3) Other relevant information regarding the circumstances of an incident.

(c) The department, in exercising and implementing its inspection and enforcement authority pursuant to En 510, shall act by and through the department's enforcement division.

(d) Pursuant to RSA 365:8 and RSA 370:2, and consistent with the Natural Gas Pipeline Safety Act, the department shall:

(1) Investigate all methods and practices of utilities relating to pipeline safety;

(2) Require the maintenance and filing of reports, records and other information relating to pipeline safety in such form and detail as the department shall prescribe;

(3) Enter at all reasonable times to inspect the property, building, plants, and offices of utilities to investigate and determine compliance with pipeline safety requirements; and

(4) Inspect all books, records, papers, and documents relevant to the pipeline safety.

(e) Each utility shall cooperate fully with the department in its investigations and inspections pursuant to En 510, including maintaining and providing all relevant information and data and providing such access as the department shall require.

## Provenance

- Official: Yes
- Source: <https://gc.nh.gov/rules/state_agencies/en500.html>
- Source ID: `nh-general-court-en-500`
- SHA-256: `ad3683f655b6ba4e7e32f07d6a783c44fac1ac76cd58b1319168cd0f9398c27b`
- Retrieved: 2026-08-20T08:23:25.693Z
- Exported: 2026-08-22T05:02:28.085Z
- Document slug: `nh-admin-rules-en-510-01`

### Source metadata

```json
{
  "jurisdiction": "US-NH",
  "chapter": "En 500",
  "part": "510",
  "documentNumber": "#13796",
  "certificationScope": "intrastate-gas",
  "federalPartsReferenced": [
    191,
    192,
    193,
    198,
    199
  ],
  "fixedFederalBaseline": null,
  "laterFederalAmendmentsIncludedByText": true,
  "references": [
    {
      "citation": "RSA 370:2",
      "referenceType": "state_statute",
      "url": "https://gc.nh.gov/rsa/html/XXXIV/370/370-mrg.htm"
    },
    {
      "citation": "RSA 365:8",
      "referenceType": "state_statute",
      "url": "https://gc.nh.gov/rsa/html/XXXIV/370/370-mrg.htm"
    },
    {
      "citation": "En 510.01",
      "referenceType": "state_regulation",
      "url": "https://gc.nh.gov/rules/state_agencies/en500.html"
    },
    {
      "citation": "En 506.01",
      "referenceType": "state_regulation",
      "url": "https://gc.nh.gov/rules/state_agencies/en500.html"
    }
  ],
  "caveats": {
    "exactScope": "Bounded current direct pipeline-safety corpus of 36 sections in New Hampshire Administrative Rules Chapter En 500, effective October 25, 2023. It includes governing scope, safety-defined terms, emergency and incident duties, pipeline standards, safety records and maps, accidents and leaks, directly associated forms, and enforcement for gas pipeline utilities.",
    "excludedScope": "This is not all New Hampshire gas or pipeline law. Seventy-nine current En 500 sections concerning service, gas quality, meters, general accounting, supply, federal filings, or specialized LPG and landfill-gas programs are inventoried but not searchable. En 511 and En 512 are adjacent because the official PHMSA evidence proves intrastate-gas certification generally but does not independently establish that every state-defined LPG or landfill operator falls within that certification. En 800 damage prevention, En 1400 pipeline-utility economic regulation, statutes, forms, orders, federal text, private standards, interstate gas, hazardous liquids, and underground storage are excluded.",
    "applicability": "Applicability depends on operator and utility status, commodity, facility, activity, intrastate or interstate status, PHMSA and FERC jurisdiction, master-meter and LPG thresholds, waivers, orders, and the text in force on the relevant date. PHMSA states that New Hampshire is certified for intrastate gas; PHMSA retains interstate gas and both intrastate and interstate hazardous-liquid inspection and enforcement. The connector does not infer hazardous-liquid or underground-storage certification.",
    "incorporation": "En 506.01 requires compliance with 49 CFR Parts 191, 192, 193, 198, and 199, including future amendments, and contains additional state requirements and incorporated private standards. The rule does not state a fixed federal edition. This connector links but does not reproduce federal or private standards and does not decide whether every later federal amendment is validly incorporated for every state-law purpose.",
    "publication": "The New Hampshire General Court administrative-rules publication is the controlling current text used here. Document #13796 adopted En 500 effective October 25, 2023. The official Puc 500 revision note confirms that former PUC safety provisions were deleted and transferred to En 500; Puc 500 is not treated as parallel current safety text. Retrieval time is publication observation, not a legal event.",
    "rights": "Official New Hampshire and federal government artifacts are retained with attribution and SHA-256 provenance. Public access does not resolve rights in site presentation, seals, agency marks, forms, linked works, or incorporated private standards; downstream redistribution requires separate review."
  },
  "region": "NH"
}
```