Prevailing wage rate for underground infrastructure works by public service companies. Directs the Department of Labor and Industry to determine and make available the prevailing wage rate for underground infrastructure work. Under the bill, each public service company shall ensure that its bid specifications or other contracts applicable to underground infrastructure works require payment at the prevailing wage rate. The bill requires contractors and subcontractors to post the prevailing wage rate in a prominent and accessible place at the work site. The bill also requires each public service company, contractor, or subcontractor subject to the provisions of the bill to comply with certain recordkeeping requirements. Provisions of the bill apply to contracts entered into on or after July 1, 2024.