# Information for Customers

**Citation:** COMAR 20.55.04.01  
**Type / status:** regulation / current  
**Agency:** Maryland Public Service Commission  
**Effective:** Not stated  
**Published:** Not stated

Maryland pipeline-safety provision COMAR 20.55.04.01, Information for Customers.

## Document text

A. System Maps or Records. Each utility shall maintain up-to-date maps, plans, or records of its entire transmission and distribution systems, with such other information as may be necessary to enable the utility to advise prospective customers, and others entitled to the information, as to the facilities available for serving any locality.

B. Selecting Rate Schedule. Each utility shall assist the customer or prospective customer in selecting the most economical rate schedule.

C. Notifying Customers. Each utility shall notify customers affected by a change in rates or schedule classification.

D. Tariff Notice.

(1) Each utility shall post a notice in a conspicuous place in each office of the utility where applications for service are received, informing the public that a copy of its tariff, as filed with the Commission, is available for inspection.

(2) A utility shall post its tariff and pending tariff changes on its website.

(3) After Commission acceptance of a tariff change, a utility shall update the tariff posted on its website not later than 3 business days after the date of acceptance.

E. Meter Reading Instruction. Upon request, each utility shall inform its customers as to the method of reading meters.

F. Hazards of Gas. At least twice each year, a notice shall be distributed to each customer, informing him of the hazards of leaking gas and instructing him of the procedures to be followed in reporting gas leaks. At the same time, notices to the general public informing them of the same information shall be made through newspaper ads. Notices (customer and general public) shall make mention of the possible entry of gas by the various means including leakage along other routes, possibly even if the party does not have gas service. In addition, a sample odor indicator shall be distributed to each customer at least biennially.

G. Other Information. Each utility shall furnish such additional information as the customer may reasonably request.

## Provenance

- Official: Yes
- Source: <https://regs.maryland.gov/us/md/exec/comar/20.55.04.01>
- Source ID: `maryland-comar`
- SHA-256: `1ff1147fcadfb1ce22347dd8327b58d5626204e8fb08af5021cd08c8614224a6`
- Retrieved: 2026-08-20T08:47:37.108Z
- Exported: 2026-08-25T12:21:47.408Z
- Document slug: `md-comar-20-55-04-01`

### Source metadata

```json
{
  "jurisdiction": "US-MD",
  "commodity": [
    "natural-gas",
    "other-gas"
  ],
  "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": [],
  "region": "MD"
}
```