| HELCO Rules | Table of Contents |
| Rule No. 1 | Definitions |
| Rule No. 2 | Character of Service |
| Rule No. 3 | Application for Service and Changes in Equipment or Operations |
| Rule No. 4 | Service Contracts |
| Rule No. 5 | Establishment and Re-establishment of Credit |
| Rule No. 6 | Deposits |
| Rule No. 7 | Discontinuance and Restoration of Service |
| Rule No. 8 | Rendering and Payment of Bills |
| Rule No. 9 | Notices |
| Rule No. 10 | Rates and Optional Rates |
| Rule No. 11 | Billing Error, Meter Tests and Adjustment For Meter Errors |
| Rule No. 12 | Temporary Service |
| Rule No. 13 | Line Extensions |
| Rule No. 13-S | Line Extension Special Subdivision Project Provisions Existing Subdivision Lots |
| Rule No. 14 | Service Connections and Facilities on Customer's Premises |
| Rule No. 15 | Supply to Separate Premises and Resale of Electric Energy |
| Rule No. 16 | Interruption of Service |
| Rule No. 18 | Net Energy Metering |
| Rule No. 19 | Transmission and Interconnection Upgrades |
