# COMAR Title 20 — Public Service Commission

## Subtitle 55 — Service Supplied by Gas Companies

### Chapter 04 — Customer Relations

#### Regulation .04 Billing Records.

*COMAR 20.55.04.04*

The utility shall retain customer billing records for the length of time necessary to permit the utility to comply with Regulation .05 of this chapter, but not less than 3 years.