# Definitions

**Citation:** COMAR 20.57.01.02  
**Type / status:** regulation / current  
**Agency:** Maryland Public Service Commission  
**Effective:** Not stated  
**Published:** Not stated

Maryland pipeline-safety provision COMAR 20.57.01.02, Definitions.

## Document text

A. In this subtitle, the following terms have the meanings indicated.

B. Terms Defined.

(1) “Chief engineer” means the head of the Engineering Division of the Commission.

(2) “Commission” means the Public Service Commission of Maryland.

(3) “Compliance order” means a document issued by the Engineering Division to a gas company or gas master meter operator directing compliance.

(4) “Consent order” means a document executed jointly by the Engineering Division and a gas company or gas master meter operator under COMAR 20.57.02.07 for the disposition of a case.

(5) “Division” means the Engineering Division of the Public Service Commission of Maryland.

(6) “Gas” means artificial, natural, or liquified petroleum gas.

(7) “Gas company” has the meaning stated in Public Utilities Article, §1-101, Annotated Code of Maryland.

(8) “Gas master meter operator” has the meaning stated in Public Utilities Article, §1-101, Annotated Code of Maryland.

(9) “Hazardous facility notice” means an order issued by the Division requiring corrective action by the gas company or gas master meter operator.

(10) “Incident” has the meaning stated in COMAR 20.55.01.04B(9).

(11) “NOPV” means a notice of probable violation issued under COMAR 20.57.02.

## Provenance

- Official: Yes
- Source: <https://regs.maryland.gov/us/md/exec/comar/20.57.01.02>
- Source ID: `maryland-comar`
- SHA-256: `f03c14626a2ef70b088def908477fa6b2cff869d57bcb9a806f7060301982c3d`
- Retrieved: 2026-08-20T08:47:37.108Z
- Exported: 2026-08-24T03:12:22.327Z
- Document slug: `md-comar-20-57-01-02`

### Source metadata

```json
{
  "jurisdiction": "US-MD",
  "commodity": [
    "gas",
    "pipeline-enforcement"
  ],
  "legalScope": "Bounded Maryland PSC pipeline-safety rules in COMAR 20.55-20.57.",
  "applicabilityCaveat": "Maryland PSC enforcement under PHMSA certification is limited to intrastate gas and hazardous-liquid pipeline operators and applicable LPG systems. PHMSA retains inspection and enforcement responsibility for interstate gas and hazardous-liquid pipelines. Coverage also depends on operator class, gas-company or master-meter status, facility and commodity definitions, exemptions, waivers, and federal preemption.",
  "incorporationCaveat": "Maryland provisions use both fixed editions of private or federal guidance and prospective phrases such as 'as amended' for federal statutes and 49 CFR. This connector preserves the consolidated Maryland text retrieved on the stated date but does not infer that every later federal amendment is incorporated for every legal purpose. Verify the controlling Maryland incorporation rule, federal edition, and event date.",
  "publicationCaveat": "The Library of Maryland Regulations is the official consolidated access system, but the Maryland Register and filed rulemaking record control adoption history. Administrative-history notes are evidence aids, not substitutes for the promulgation record. The PSC program description is dated September 2011 and is used only to corroborate program scope, not current rule text.",
  "rightsCaveat": "Official Maryland and federal legal-source captures are preserved with attribution and hashes. State presentation, seals, site software, and incorporated private standards may carry separate rights; incorporated standards are referenced but not reproduced by this connector.",
  "references": [
    {
      "citation": "COMAR 20.57.02.07",
      "referenceType": "state-administrative-rule",
      "url": "https://regs.maryland.gov/us/md/exec/comar/20.57.02.07"
    },
    {
      "citation": "COMAR 20.55.01.04",
      "referenceType": "state-administrative-rule",
      "url": "https://regs.maryland.gov/us/md/exec/comar/20.55.01.04"
    }
  ],
  "region": "MD"
}
```