Pursuant to the Public Utilities Article, § 17-403, Annotated Code of Maryland, WSSC has general authority to adopt rules and regulations to carry out the provisions of Division II of the Public Utilities Article; and specific authority under § 18-105, Annotated Code of Maryland, to adopt regulations to carry out the provisions of Public Utilities Article, Title 18, Personnel, Subtitle 1, Personnel Management. (REG-HRM-HR-2014-005 § III)