Local authority · Mississippi
Jackson — energy & appliance code adoption
Yes — effectively. Mississippi has no statewide residential electrical code applicable to one- and two-family dwellings, so the City of Jackson's adopted 2017 NEC (via Code of Ordinances Ch. 26) is the operative AHJ authority for listing and installation requirements inside city limits — not a delta on top of a state default. Below: how Jackson differs from Mississippi on appliance listing, NEC, fire code, and energy storage, with sources.
Is UL 858 required in Jackson?
Yes — effectively. Jackson 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. Under the adopted 2017 NEC (Art. 110.3), household electric ranges must be listed by a recognized testing laboratory; UL858 is the standard such labs apply to household electric ranges.
Are NRTL-listed (UL / ETL / CSA) appliances required in Jackson?
Yes. Jackson's adopted code requires fixed electrical appliances to be listed by an NRTL (UL, ETL/Intertek, CSA, etc.) — Jackson Code of Ordinances Ch. 26, incorporating NEC 2017 Art. 110.3. Adopted 2017 NEC requires equipment to be listed/labeled by an approved testing laboratory; this is the operative listing requirement in Jackson.
Which edition of the NEC does Jackson use?
Jackson has adopted the 2017 edition of the National Electrical Code (NEC), effective 2018. City of Jackson Building Permits Division lists the 2017 NEC as the adopted electrical code with no local amendments. Jackson has not yet moved to the 2020 or 2023 NEC.
Is UL 9540 required for residential energy storage in Jackson?
Yes. Jackson's adopted code requires UL 9540 listing for stationary energy storage systems (ESS) in dwellings. IRC Appendix AW not adopted; residential ESS governed by IFC §1207.11. UL 9540A test report needed to exceed 20 kWh per dwelling.
Is UL 9540A fire-propagation testing required in Jackson?
Yes — effectively. Jackson requires NRTL listing for energy storage systems, and UL 9540A is the controlling standard.
What is the residential energy-storage capacity limit in Jackson?
Jackson limits residential energy storage to 20 kWh per dwelling unit.
Which fire code does Jackson enforce?
Jackson enforces IFC 2018. Jackson adopts the 2018 IFC as part of its Ch. 26 building-code package.
Code adoption summary
| NEC edition | 2017 NEC |
|---|---|
| Appliance listing (UL 858) | Effectively required |
| NRTL listing requirement | Required |
| Fire code | IFC 2018 |
| IRC edition | 2018 IRC |
| UL 9540 (residential ESS) | Required |
| UL 9540A propagation test | Effectively required |
| Residential ESS cap | 20 kWh / dwelling |
| NFPA 855 edition | 2017 |
Sources
- City of Jackson — Building Permits
- Jackson, MS Code of Ordinances, Chapter 26
- City of Jackson — Proposed Chapter 26 Ordinance