PAR Western Line Contractors, LLC (dba QUES), a subsidiary of Quanta Services, Inc. (NYSE: PWR), is composed of some of the most highly qualified professionals experienced in all aspects of engineering, designing, asset management, and construction management for the electric utility and other industries. Ensures project-specific safety training is provided and all employees, including subcontractors, are aware of site-specific safety requirements, the contractor's site-specific plans, and required Federal, State, and local laws, rules, and regulations.