Uniform System of Accounts
- California PUC USOA Water Class A (2018)
- California PUC USOA Water Class BCD (2018)
- FERC USoA for Electric Utilities
- FERC USoA for Natural Gas Utilities
- Kentucky PSC USOA Water Companies Class AB (2002)
- Kentucky PSC USOA Water Companies Class C (2002)
- Kentucky PSC USOA Water Districts Class AB (2002)
- Kentucky PSC USOA Water Districts Class C (2002)
- New Hampshire USOA Sewer (2015)
- New Hampshire USOA Water (2015)
- Texas USOA for Water Utilities
- Wisconsin USOA Municipal Water (2013)
- FERC Order 552 USoA (1993)