Minnesota vs South Dakota Electrical Code
Side-by-side comparison
| Factor | Minnesota | South Dakota |
|---|---|---|
| NEC edition | NEC 2023 | NEC 2023 |
| Compliance score | 80/100 (Moderate) | 95/100 (Strict) |
| Electrician license | Required | Required |
| License name | Master/Journeyman Electrician License | Electrical License |
| Permits required | Yes | Yes |
| State amendments | No | Yes |
| Homeowner exempt | Yes | Yes |
Key differences
- South Dakota has state-specific amendments to the NEC, indicating active code review and oversight.
Licensing requirements
Minnesota
Minnesota requires a Master/Journeyman Electrician License through the Minnesota Board of Electricity. Homeowners are exempt for work on their own primary residence.
South Dakota
South Dakota requires a Electrical License through the South Dakota Electrical Commission. Homeowners are exempt for work on their own primary residence.
Wire sizing is identical. NEC Table 310.16 ampacity values have not changed since NEC 2017. Whether you are wiring in Minnesota or South Dakota, a 20A circuit uses 12 AWG copper and a 30A circuit uses 10 AWG copper. The differences between states are in code enforcement, not in the wire sizing itself.
GFCI requirement differences
Both states enforce NEC 2023, so GFCI requirements are identical. See our kitchen GFCI guide and bathroom GFCI guide for detailed room-by-room requirements.
Frequently asked questions
Which state has stricter electrical codes, Minnesota or South Dakota?
South Dakota has stricter enforcement with a score of 95/100 vs 80/100. The score reflects NEC edition recency, licensing requirements, permit enforcement, and state amendments.
Is my electrician license from Minnesota valid in South Dakota?
Electrician licenses are generally not transferable between states. If you hold a license in Minnesota, you will typically need to apply separately in South Dakota. Some states offer reciprocity agreements, but these vary. Contact the licensing authority in South Dakota directly for requirements.
Is the wire size different in Minnesota vs South Dakota?
No. Wire sizing per NEC Table 310.16 is identical regardless of which NEC edition a state enforces. A 20A circuit requires 12 AWG copper in both Minnesota and South Dakota. The ampacity values have not changed since NEC 2017.
Do both Minnesota and South Dakota require electrical permits?
Both states require electrical permits for most work. Common permit-required projects in both states include new circuits, panel upgrades, service changes, and EV charger installations.
NEC 2023 references verified April 2026