Below are the operating rules and regulations set forth by the California Public Utilities Commission.
| Definitions | Rule No. 1 |
| Description of Service | Rule No. 2 |
| Application for service | Rule No. 3 |
| Contracts | Rule No. 4 |
| Special information required on forms | Rule No. 5 |
| Establishment and re-establishment of credit | Rule No. 6 |
| Deposits | Rule No. 7 |
| Notices | Rule No. 8 |
| Rendering and payment of bills | Rule No. 9 |
| Disputed bills | Rule No. 10 |
| Discontinuance and restoration of service | Rule No. 11 |
| Information available to public | Rule No. 12 |
| Temporary service | Rule No. 13 |
| Continuity of service | Rule No. 14 |
| Non-Essential, Wasteful Uses of Potable Water | Rule No. 14.1 |
| Main extensions | Rule No. 15 |
| Service connections, meters, and customer’s facilities | Rule No. 16 |
| Standards for measurement of service | Rule No. 17 |
| Meter tests and adjustment of bills for meter error | Rule No. 18 |
| Service to separate premises and multiple units, and resale of water | Rule No. 19 |
| Water conservation | Rule No. 20 |
| Military family relief program | Rule No. 21 |
| Customer Information Sharing | Rule No. 22 |
