# 8003 Natural Gas Service Reliability and System Planning Standards - 5.0 Natural Gas Distribution System Planning and Modeling Program

**Citation:** 26 Del. Admin. C. § 8003-5.0  
**Type / status:** regulation / current  
**Agency:** Delaware Public Service Commission  
**Effective:** 2020-10-11  
**Published:** 2020-10-01

Natural Gas Distribution System Planning and Modeling Program. 5.1 Each GDC shall have a robust system planning and modeling program based on natural gas industry best practices designed to review, on an annual basis or more often as needed, issues with the Natural Gas Distribution System affecting safety and Reliability to proactively plan for system improvements to be incorporated in the various plans (annual GDC capi

## Document text

5.1 Each GDC shall have a robust system planning and modeling program based on natural gas industry best practices designed to review, on an annual basis or more often as needed, issues with the Natural Gas Distribution System affecting safety and Reliability to proactively plan for system improvements to be incorporated in the various plans (annual GDC capital plans and Infrastructure, Safety and Reliability Plans). Best practices that should be incorporated into system planning and modeling programs include:

5.2 Each GDC shall develop and maintain a comprehensive prioritization program for analyzing the Reliability performance of its Natural Gas Distribution System during the course of each year, which shall include methods to measure and improve worst performing areas of the gas distribution system. Areas of prioritization may include replacement of aging infrastructure (cast iron, bare steel, aldyla plastic) and should tie into system planning and modeling program efforts. Natural Gas Distribution System areas are to be determined by the GDC.

## Provenance

- Official: Yes
- Source: <https://regulations.delaware.gov/AdminCode/title26/8003>
- Source ID: `de-admin-code`
- SHA-256: `1b173a52a72c162f498f125c6e869d021ff3a50ad8f319f6ccf22334d0b57923`
- Retrieved: 2026-08-20T09:32:30.577Z
- Exported: 2026-08-24T03:57:43.063Z
- Document slug: `de-admin-code-8003-5-0`

### Source metadata

```json
{
  "jurisdiction": "US-DE",
  "title": 26,
  "regulatoryGroup": "8000 Gas Regulations",
  "regulationNumber": "8003",
  "section": "5.0",
  "scopeKind": "adjacent-gas-reliability",
  "legalScope": "Complete current Regulation 8003 adjacent natural-gas distribution reliability and system-planning standards, retained because it expressly requires federal and Delaware pipeline-safety compliance.",
  "applicabilityCaveat": "Regulation 8003 is adjacent gas-distribution reliability and system-planning coverage, not the core Delaware pipeline-safety compliance code. It applies to Delaware gas distribution companies and does not displace 49 CFR Part 192, Regulation 8001, utility manuals, Commission orders, or other law.",
  "incorporationCaveat": "Regulation 8003 requires conformity with 49 CFR Part 192 and Delaware pipeline-safety programs while adding state reliability and planning duties. The federal regulation and utility manuals are not reproduced.",
  "rights": "Delaware provides authenticated Administrative Code PDFs under its Uniform Electronic Legal Material Act implementation, but the Regulations site does not state a general open-content license. Preserve attribution and provenance; review redistribution of site presentation, state marks, linked forms, and incorporated federal or third-party material separately.",
  "authenticatedPdfId": "2a8585b3-8f3c-4671-9a83-942f72e92268",
  "references": [
    {
      "citation": "49 CFR 192",
      "referenceType": "cfr",
      "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-D/part-192"
    }
  ],
  "region": "DE"
}
```