# En 510.02 Intervals of Inspection

**Citation:** N.H. Admin. R. En 510.02  
**Type / status:** regulation / current  
**Agency:** New Hampshire Department of Energy  
**Effective:** 2023-10-25  
**Published:** 2023-10-25

En 510.02 Intervals of Inspection.

## Document text

En 510.02 Intervals of Inspection.

(a) Each utility shall allow the department staff, upon presentation of identifying credentials, to enter upon, inspect, and examine the records and properties of persons to the extent such records and properties are relevant to determining the compliance of such persons with department rules or orders, or the commission rules or orders.

(b) Each utility shall permit the department to conduct inspections in response to or related to any of the following:

(1) Routine scheduling;

(2) A complaint received from a member of the public or any party;

(3) Information obtained from a previous inspection;

(4) Pipeline accident or incident; and;

(5) Compliance with En 500.

(c) The department shall schedule and conduct inspections if:

(1) Results obtained in an initial inspection show a defect, irregularity or non-compliance which establishes the need for a subsequent or follow-up inspection; or

(2) The department determines that additional inspections are required to provide sufficient information to allow it to determine utility compliance with department rules or orders, or commission rules or orders.

## 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: 2026-08-22T23:46:59.675Z
- Document slug: `nh-admin-rules-en-510-02`

### 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": "En 510.02",
      "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"
}
```