The utility shall investigate promptly and thoroughly any complaint concerning its charges, practices, facilities, or service.

Authority: Public Utilities Article, §§2-113, 2-121, and 5-101, Annotated Code of Maryland

Effective date: July 1, 1968 (Order No. 57171)

Regulations .03 and .06A amended effective January 23, 1981 (8:2 Md. R. 117)

Regulation .09 amended effective May 10, 1993 (20:9 Md. R. 780)