U.S. code adoption
Indiana — 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 Indiana, with primary sources.
Is UL 858 required in Indiana?
Yes — effectively. Indiana 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. Listing required by adopted NEC editions; UL858 is the de-facto listing for household electric ranges.
Are NRTL-listed (UL / ETL / CSA) appliances required in Indiana?
Yes. Indiana'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 Indiana use?
Indiana has adopted the 2008 edition of the National Electrical Code (NEC). General statewide Indiana Electrical Code remains based on NEC 2008. The 2020 Indiana Residential Code (in effect since 2019-12-26) incorporates NEC 2017 provisions for one- and two-family dwellings.
Is UL 9540 required for residential energy storage in Indiana?
Yes — effectively. Indiana requires NRTL listing for stationary energy storage systems (ESS) in dwellings, and UL 9540 is the controlling standard. ESS in residential dwellings governed by IFC §1207, referencing UL 9540 listing and NFPA 855 installation standard. UL 9540A required to exceed the default 20 kWh / dwelling cap or reduce default 3-ft separation.
Is UL 9540A fire-propagation testing required in Indiana?
Yes — effectively. Indiana requires NRTL listing for energy storage systems, and UL 9540A is the controlling standard.
What is the residential energy-storage capacity limit in Indiana?
Indiana limits residential energy storage to 20 kWh per dwelling unit.
Which fire code does Indiana enforce?
Indiana enforces IFC 2012. 2014 Indiana Fire Code based on IFC 2012; statewide and not amendable locally.
Code adoption summary
| NEC edition | 2008 NEC |
|---|---|
| Appliance listing (UL 858) | Effectively required |
| NRTL listing requirement | Required |
| Fire code | IFC 2012 |
| IRC edition | 2018 IRC |
| UL 9540 (residential ESS) | Effectively required |
| UL 9540A propagation test | Effectively required |
| Residential ESS cap | 20 kWh / dwelling |
| NFPA 855 edition | 2017 |
Sources
- NFPA — NEC enforcement maps
- Indiana DHS — Codes, Standards, and Other Rules
- Canary Media — Balcony solar in state legislatures