# COMAR Title 12 — Department of Public Safety and Correctional Services

## Subtitle 11 — Office of the Secretary

### Chapter 03 — 9-1-1 Emergency Telephone System

#### Regulation .09 Safeguarding Telephone Circuits by Telephone Companies.

*COMAR 12.11.03.09*

A. A facility housing 9-1-1 telephone equipment shall:

  (1) Be equipped at all exposed terminations, including central office distributing frames, with protective devices that prevent accidental worker contact; and

  (2) Include clearly identified protected terminations to distinguish protected terminations from other circuitry.

B. A protected circuit may not be opened, grounded, short-circuited, or manipulated in any way by a telephone company worker without the local telephone company first obtaining approval for circuit release from the appropriate public safety answering point.

C. A telephone company shall ensure that telephone company employees who work in facilities associated with the 9-1-1 service are familiar with procedures for safeguarding 9-1-1 system equipment.