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Home » AHJ » AHJ, utility and governing code updates for California, Wyoming, Washinton, Texas and Minnesota

The Solargraf platform has recently been updated with changes in AHJs, utilities, and governing codes. Stay on top of the regulations effortlessly, ensuring smooth permit processes and streamlined compliance for your solar projects. Experience peace of mind with Solargraf knowing your designs are always up to date with industry standards.

California AHJ updates

Update: California made changes in Monterey Park and Los Angeles AHJs. Solargraf AHJ database is now updated.

  1. City of Monterey Park: Separate permit set is required for battery projects. If you have PV with battery system, you must send permit for the battery along with the PV with battery systems.
  2. City of Los Angeles: For battery projects, a disconnect is required for electrical hazards that shall be located within the 6ft of the main service panel, on the same wall plane, not separated from one another by walls, gates, fences, vegetation, or architectural features of the building.

Governing code updates:

State

New Adoption Code 

Codes Adoption Cycle

State-wise code adoption

Next Adoption cycle

Wyoming

2023 National Electrical Code

2021 International Building Code

2021 International Fire Code

2021 International Residential Code

2021 International Plumbing Code

2021 International Mechanical Code

2021 International Fuel Gas Code

2021 International Existing Building Code

3 Years

Yes

Adopting 2024 ICC towards the end of the year

State

New Adoption Code 

Existing Governing Codes

Code Adoption Effective Until

Washington

2023 National Electrical Code

2021 Washington State Building Code

2021 Washington State Existing Building Code

2021 Washington State Fuel Gas Code

2021 Washington State Residential Code

2021 Washington State Mechanical Code

2021 Washington State Wildland-Urban Interface Code

2021 Uniform Plumbing Code

2021 International Swimming Pool and Spa Code

020 National Electrical Code

2018 Washington State Building Code

2018 Washington State Existing Building Code

2018 Washington State Fuel Gas Code

2018 Washington State Residential Code

2018 Washington State Mechanical Code

2018 Washington State Wildland-Urban Interface Code

2018 Uniform Plumbing Code

2018 International Swimming Pool and Spa Code

15-02-2027 (ICC)

01-04-2027 (NEC)

Utility updates:

Update: Utilities from Minnesota and Texas have made changes and Solargraf’s utility database is now updated.

  1. Minnesota:
    Rochester public utilities: Production meter needs to be #6 American Wire Gauge (AWG) as this is the minimum wire size expected for the terminals.
  2. Texas:
    Hilco Electric Cooperative: HILCO does not approve of line side taps and has allowed using Milbank K4977 connector.

Please note that the information provided is based on the updates received from AHJ and Utility authorities and may be subject to further updates or changes. Always consult the latest local regulations and AHJ guidelines for the most accurate and up-to-date information. If you have any additional questions, feel free to contact us at [email protected].

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