The Department of Public Utilities (DPU) is an adjudicatory agency overseen by a three-member Commission. It is responsible for oversight of investor-owned electric power, natural gas, and water utilities in the Commonwealth. In addition, the DPU is charged with developing alternatives to traditional regulation, monitoring service quality, regulating safety in the transportation and gas pipeline areas, and the siting of energy facilities. The mission of the DPU is to ensure that consumers’ rights are protected, and that utility companies are providing the most reliable service at the lowest possible cost. The DPU oversees the public safety from transportation and gas pipeline-related accidents, and the energy facilities siting process. The DPU seeks to promote safety, security, reliability of service, affordability, equity, and greenhouse gas emission reductions.