Mississippi Electrical Code & NEC Adoption
Electrical code in Mississippi is determined by local jurisdictions rather than a single statewide adoption. This guide covers how electrical regulations work in Mississippi, wire sizing fundamentals, GFCI requirements, licensing rules, and city-specific building department contacts to help you navigate permits and inspections.
How Mississippi scores on electrical code compliance
WireRef rates each state's electrical code environment on a 0-100 scale based on four factors: NEC edition recency, licensing requirements, permit enforcement, and active state amendments. Mississippi scores 20/100, rated Minimal.
This score is for informational purposes only. A lower score does not mean electrical work in the state is unsafe - many local jurisdictions enforce strict standards independently of statewide policy.
Wire sizing requirements in Mississippi
Regardless of the specific NEC edition enforced in your Mississippi jurisdiction, the core ampacity values in Table 310.16 apply. The table below covers standard residential circuits:
| Circuit | Wire (Cu) | Breaker | Insulation |
|---|---|---|---|
| Kitchen 20A outlet Required for all kitchen receptacle circuits per NEC 210.11(C)(1) | 12 AWG | 20A | NM-B (Romex) |
| Bathroom 20A outlet Dedicated 20A circuit required per NEC 210.11(C)(3) | 12 AWG | 20A | NM-B (Romex) |
| General lighting 15A Standard for bedroom, living room, hallway lighting circuits | 14 AWG | 15A | NM-B (Romex) |
| Electric dryer 240V 10/3 NM-B for cable; 10 AWG THHN in conduit | 10 AWG | 30A | NM-B or THHN |
| Electric range 240V 6/3 NM-B for cable run; dedicated circuit required | 6 AWG | 50A | NM-B or THHN |
| EV charger (48A) 48A continuous load x 1.25 = 60A breaker minimum | 6 AWG | 60A | THHN in conduit |
| Central A/C (3-5 ton) Sized per unit nameplate MCA and MOCP values | 10-6 AWG | 30-50A | THHN |
| 200A dwelling service 2/0 copper or 4/0 aluminum per Table 310.15(B)(7) for dwelling services | 2/0 AWG | 200A | USE-2 or THHN |
For long wire runs in Mississippi (over 50 feet), voltage drop becomes the limiting factor before ampacity. Use our voltage drop calculator to verify your wire size keeps voltage drop under 3% for branch circuits or 5% total (feeder + branch).
GFCI requirements in Mississippi
GFCI requirements depend on the specific NEC edition enforced in your Mississippi jurisdiction. Contact your local building department to confirm which requirements apply.
| Location | GFCI requirement |
|---|---|
| Kitchen | Contact your local building department. |
| Bathroom | All bathroom receptacles typically require GFCI. |
| Outdoor | Outdoor receptacles typically require GFCI. |
| Garage | Garage receptacles typically require GFCI. |
| Basement | Varies by edition. |
| Laundry | Varies by edition. |
See detailed GFCI rules by room: Kitchen · Bathroom · Garage · Outdoor · Basement · Laundry · Bedroom · Pool & Spa
Electrician licensing & permits in Mississippi
Mississippi does not require a statewide electrician license. Licensing requirements are set by individual cities and counties. Before hiring an electrician or doing your own work, check with your local building department for applicable licensing requirements.
Permits: Electrical permits are required for most new circuits, panel upgrades, and service changes. Homeowners may pull permits for their own primary residence in most jurisdictions.
Typical permit costs: Residential electrical permits in Mississippi generally range from $40-$150 depending on the scope of work and jurisdiction.
Permit costs are approximate and vary by jurisdiction. Contact your local building department for exact fees. Costs shown are for residential electrical permits and may not reflect commercial rates.
Common electrical projects that require a permit in most Mississippi jurisdictions:
- New circuits - adding any new branch circuit to the panel
- Panel upgrades - replacing or upsizing the main electrical panel
- Service changes - upgrading from 100A to 200A service
- EV charger installation - new 240V circuit for Level 2 charging
- Hot tub or pool wiring - Article 680 requirements apply
- Detached structure wiring - garage, shed, or ADU subpanel
Work that typically does not require a permit includes replacing switches, outlets, and light fixtures on existing circuits (no new wiring). However, rules vary - when in doubt, call your local Mississippi building department before starting.
License types in Mississippi
| License Type | Experience | Exam | Details |
|---|---|---|---|
| Local Jurisdiction License | See requirements | Yes | Mississippi has no statewide electrician license. Cities and counties set their own requirements. |
Homeowner exemption: Yes. Generally yes, varies by jurisdiction
Major cities: building departments & local codes
While Mississippi's statewide code provides the baseline, individual cities may have additional requirements, different permit fees, or local amendments. Below are the building department contacts for Mississippi's largest cities.
| City | Building Department | Notes |
|---|---|---|
| Jackson | Building & Permits | Follows state NEC adoption |
| Gulfport | Building Department | Follows state NEC adoption |
City-specific information last verified Apr 2026. Contact the building department directly for current fees and requirements. WireRef is not affiliated with any municipal building department.
EV charger permit requirements in Mississippi
Most jurisdictions in Mississippi require an electrical permit for Level 2 EV charger installation. A Level 2 charger typically requires a dedicated 240V circuit with a 50A or 60A breaker and 6 AWG copper wire (for a 48A charger at continuous load).
| Spec | Requirement |
|---|---|
| Typical circuit | 240V, 50A or 60A breaker, 6 AWG copper THHN |
| Permit required | Yes, in most jurisdictions |
| Continuous load rule | 48A charger x 1.25 = 60A breaker (NEC 210.20) |
| GFCI/disconnect | Disconnect within sight of charger per NEC 625. GFCI protection per NEC 625.54 (outdoor) or manufacturer requirements |
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See our complete EV charger wiring guide for detailed installation requirements. For state incentives and rebates, check the DSIRE database for Mississippi-specific programs.
Frequently asked questions: Mississippi electrical code
Does Mississippi have a statewide electrical code?
No - Mississippi does not adopt the NEC statewide. Electrical codes are determined by local jurisdictions (cities and counties). Contact your local building department.
Do I need an electrician license to do electrical work in Mississippi?
Mississippi does not have a statewide electrician license requirement. Check your local jurisdiction - many cities and counties require their own licenses.
Do I need a permit for electrical work in Mississippi?
Yes - most electrical work in Mississippi requires a permit, including new circuits, panel upgrades, and service changes. Typical residential permit costs range from $40-$150. Homeowners can typically pull permits for their own residence.
How much does an electrical permit cost in Mississippi?
Residential electrical permits in Mississippi typically cost $40-$150 depending on the scope of work and specific jurisdiction. Costs vary significantly between cities - contact your local building department for exact fees.
What wire size do I need for a 20-amp kitchen circuit in Mississippi?
12 AWG copper is required for all 20-amp circuits regardless of which NEC edition Mississippi enforces - the ampacity tables in Table 310.16 have been unchanged since NEC 2017. Use 12/2 NM-B (Romex) for standard cable runs or 12 AWG THHN in conduit. See our kitchen wiring guide for complete requirements.
Does Mississippi require GFCI in the kitchen?
Kitchen GFCI requirements depend on the NEC edition enforced in your specific Mississippi jurisdiction. Under NEC 2023+, all kitchen outlets require GFCI. Under older editions, only countertop outlets near sinks are covered.
Do I need a permit for an EV charger in Mississippi?
Yes - most Mississippi jurisdictions require an electrical permit for Level 2 EV charger installation since it involves a new 240V circuit. The typical installation requires a 60A breaker with 6 AWG copper wire for a 48A charger. See our EV charger wiring guide for complete specs.
How does Mississippi's electrical code compare to other states?
Mississippi scores 20/100 (Minimal) on WireRef's compliance scale. This is a minimal score - the state has limited statewide electrical code enforcement. Local jurisdictions may be stricter.
Related guides
Compare Mississippi to other states
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States are color-coded by NEC edition: 2023+ current, 2020 one cycle behind, older/local two+ cycles behind.
NEC 2023 references verified April 2026