Public utilities provide electric, gas, water or telephone service to customers in a specified area. Utilities have a duty to provide safe and adequate service on reasonable terms to anyone who lives within the service area on without discriminating between customers. Because most utilities operate in near monopolistic conditions, they can be heavily regulated by local, state, and federal authorities. Generally, the local and state agencies are called Public Service Commissions (PSC) or Public Utility Commissions (PUC). Municipal Utilities and Rural Electric Cooperatives may be unregulated though.
Dayhoit is an unincorporated community in Harlan County, Kentucky, United States. Although it is unincorporated, it has a post office, with the ZIP code of 40824. The population of the ZCTA for 40824 was 458 at the 2000 census.