Maryland Code, Public Utilities § 5-305

(a) This section applies to a project by an investor-owned gas company, electric company, or combination gas and electric company involving the construction, reconstruction, installation, demolition, restoration, or alteration of any underground gas or electric infrastructure of the company, and any related traffic control activities.

(b) An investor-owned gas company, electric company, or combination gas and electric company shall require a contractor or subcontractor on a project described in subsection (a) of this section to pay its employees not less than the prevailing wage rate determined solely by the Commissioner of Labor and Industry in a process substantially similar to the process established under Title 17, Subtitle 2 of the State Finance and Procurement Article.

(c) In accordance with Title 3, Subtitle 5 of the Labor and Employment Article, the Maryland Department of Labor shall enforce the requirement under subsection (b) of this section for contractors and subcontractors to pay employees not less than the prevailing wage rate determined solely by the Commissioner of Labor and Industry.