Local authority · Mississippi
Gulfport — energy & appliance code adoption
Yes — effectively. Mississippi has no statewide electrical code. Gulfport's locally adopted code under Ch. 3 is the operative authority within city limits. Below: how Gulfport differs from Mississippi on appliance listing, NEC, fire code, and energy storage, with sources.
Is UL 858 required in Gulfport?
Yes — effectively. Gulfport 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. UL858 is the practical NRTL listing path for household electric ranges.
Are NRTL-listed (UL / ETL / CSA) appliances required in Gulfport?
Yes. Gulfport's adopted code requires fixed electrical appliances to be listed by an NRTL (UL, ETL/Intertek, CSA, etc.) — Gulfport Code Ch. 3 / NEC 110.3(B). NRTL listing required.
Which edition of the NEC does Gulfport use?
Gulfport has adopted the 2017 edition of the National Electrical Code (NEC). Adopted by city ordinance in Gulfport Code Ch. 3 (Buildings). Best-available evidence indicates 2017 NEC as the operative edition; verify against latest Municode supplement.
Is UL 9540 required for residential energy storage in Gulfport?
Yes — effectively. Gulfport requires NRTL listing for stationary energy storage systems (ESS) in dwellings, and UL 9540 is the controlling standard. Stub: 2018 ICC family adopted but ESS-specific local amendments unverified. Defaulting to IFC §1207 baseline; confirm with Gulfport FD before install.
Is UL 9540A fire-propagation testing required in Gulfport?
Yes — effectively. Gulfport requires NRTL listing for energy storage systems, and UL 9540A is the controlling standard.
What is the residential energy-storage capacity limit in Gulfport?
Gulfport limits residential energy storage to 20 kWh per dwelling unit.
Which fire code does Gulfport enforce?
Gulfport enforces IFC 2018. Enforced by Gulfport Fire Department.
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) | Effectively required |
| UL 9540A propagation test | Effectively required |
| Residential ESS cap | 20 kWh / dwelling |
| NFPA 855 edition | 2017 |
Sources