Conn. Agencies Regs. § 16-2-6
The Public Utilities Control Authority is charged by statute with the regulation of public service companies, including railroad, street railway, motor bus, electric, gas, telephone, telegraph, pipeline, sewage, water and community antenna television companies; also motor carriers of property for hire; taxicabs, motor vehicles in livery service. This regulation function embodies the following activities: review and establishment of rates charged; investigation of complaints; inspection of plant and equipment; issuance of certificates of authority; investigation of fatal accidents; issuance of certificates and permits to motor truck and passenger carriers; and all other regulatory activities provided by law as set forth in Title 16 of the General Statutes.
Conn. Agencies Regs. § 16-2-6