U.S. code adoption
Oregon — energy & appliance code adoption
Yes — effectively. This page summarizes electrical (NEC), appliance-listing (UL 858), fire-code, and energy-storage (UL 9540 / NFPA 855) code adoption for Oregon, with primary sources.
Is UL 858 required in Oregon?
Yes — effectively. Oregon requires fixed household appliances to be listed by a Nationally Recognized Testing Laboratory (NRTL), and UL 858 is the de-facto listing standard a household electric range must meet.
Are NRTL-listed (UL / ETL / CSA) appliances required in Oregon?
Yes. Oregon's adopted code requires fixed electrical appliances to be listed by an NRTL (UL, ETL/Intertek, CSA, etc.) — NEC 110.3.
Which edition of the NEC does Oregon use?
Oregon has adopted the 2023 edition of the National Electrical Code (NEC). Oregon Electrical Specialty Code based on NEC 2023.
Is UL 9540 required for residential energy storage in Oregon?
Yes. Oregon's adopted code requires UL 9540 listing for stationary energy storage systems (ESS) in dwellings. OSFM adopts the OFC statewide; OR also adopts ORSC residential provisions. Uniform statewide enforcement.
Is UL 9540A fire-propagation testing required in Oregon?
Yes — effectively. Oregon requires NRTL listing for energy storage systems, and UL 9540A is the controlling standard.
What is the residential energy-storage capacity limit in Oregon?
Oregon limits residential energy storage to 20 kWh per dwelling unit.
Which fire code does Oregon enforce?
Oregon enforces other.
Code adoption summary
| NEC edition | 2023 NEC |
|---|---|
| Appliance listing (UL 858) | Effectively required |
| NRTL listing requirement | Required |
| Fire code | other |
| UL 9540 (residential ESS) | Required |
| UL 9540A propagation test | Effectively required |
| Residential ESS cap | 20 kWh / dwelling |
| NFPA 855 edition | 2020 |
Sources