# En 504.05 Emergency Notification

**Citation:** N.H. Admin. R. En 504.05  
**Type / status:** regulation / current  
**Agency:** New Hampshire Department of Energy  
**Effective:** 2023-10-25  
**Published:** 2023-10-25

En 504.05 Emergency Notification.

## Document text

En 504.05 Emergency Notification.

(a) The utility shall notify the enforcement division of the department by telephone when any of the following events occur:

(1) A release of gas from a pipeline, release of LNG or LPG, or release of gas from a LNG or LPG facility that results in:

a. A death;

b. Personal injury necessitating same day professional medical treatment; or

c. Estimated property damage of $5,000 or more;

(2) A fire or an explosion at, or emergency shutdown of, a liquefied natural gas facility, or propane-air facility;

(3) An evacuation of a building conducted by a fire department, utility or other emergency personnel because of the presence of gas in the atmosphere or in, or in the immediate vicinity of, the building;

(4) An unplanned service interruption or gas outage that is expected to result in 50 or more customer outage hours;

(5) A single outage occurring at a state, federal, or municipal facility, hospital, school or other facility in which the public could be affected;

(6) A breach of security or other threat that jeopardizes the operation of a utility's major facilities;

(7) Any exceedance of maximum allowable operating pressure of any duration, including accidental over-pressurizations, consistent with En 506.01(a);

(8) A gas facility-related event, that the utility is aware of or has reason to believe has been or will be reported in the news media, including, but not limited to, a shutdown of a major highway, arterial roadway or rail system, or where a person identified as a news reporter was present;

(9) When the utility confirms that levels of odorant do not meet the requirements of En 506.02(m); or

(10) An event which is significant in the judgment of the utility, even though it is not described above.

(b) A utility shall not be required to determine or document the presence or involvement of gas in any incident or event before notifying the department.

(c) The telephone notification shall be made promptly, but no more than one hour following confirmed discovery by the utility of the event or any incident defined in En 504.06.

(d) The utility shall provide to the department investigator who responds to the call the following information:

(1) Identity of reporting utility;

(2) Name, title, and location of the person reporting the incident and contact information;

(3) Location of the incident including street address and city or town;

(4) Number of known or estimated fatalities and personal injuries, if any;

(5) Type and extent of known or estimated property damage;

(6) Description of the incident or event including any significant facts known by the utility that relate to the cause and resolution of the problem;

(7) Date and hour the incident occurred and was discovered by the utility and, to the extent known, by any other party;

(8) For a service interruption, gas outage, or evacuation of a building, the estimated or known number of people and/or customers affected and the estimated or actual duration of the outage; and

(9) When the Office of Pipeline Safety of the United States Department of Transportation was, or will be, notified of the incident, if applicable.

## 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: 2026-08-23T05:57:11.637Z
- Document slug: `nh-admin-rules-en-504-05`

### Source metadata

```json
{
  "jurisdiction": "US-NH",
  "chapter": "En 500",
  "part": "504",
  "documentNumber": "#13796",
  "certificationScope": "intrastate-gas",
  "federalPartsReferenced": [
    191,
    192,
    193,
    198,
    199
  ],
  "fixedFederalBaseline": null,
  "laterFederalAmendmentsIncludedByText": true,
  "references": [
    {
      "citation": "En 504.05",
      "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"
    },
    {
      "citation": "En 506.02",
      "referenceType": "state_regulation",
      "url": "https://gc.nh.gov/rules/state_agencies/en500.html"
    },
    {
      "citation": "En 504.06",
      "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"
}
```