The U.S. Capitol Power Plant requires a comprehensive safety and health compliance audit of its utility tunnels, focusing on identifying non-compliance and documenting condition changes. The audit must be led by a Certified Industrial Hygienist, Safety Specialist, and Mechanical and Electrical Engineers, and include digital photographs. The report will address potential tunnel or pipe failures, deterioration, and safety concerns. No specific budget, performance location, or non-bid timelines are mentioned in the description.