A protected distribution system is a network designed to deliver electricity, gas, or water to consumers while ensuring safety and reliability. It involves various entities, including utilities (electric, gas, and water) responsible for operating and maintaining the distribution infrastructure. Regulatory bodies like FERC (federal) and PUCs (state/local) oversee the operation of these systems, setting rates, enforcing safety standards, and protecting consumer interests. Other entities, such as equipment manufacturers, engineering firms, and government agencies, also play roles in supporting and regulating protected distribution systems.