State ComparisonUpdated Apr 2026

Idaho vs Oregon Electrical Code

Idaho and Oregon score equally at 95/100 (Strict). Both states enforce NEC 2023.
Idaho95/100
Oregon95/100

Side-by-side comparison

FactorIdahoOregon
NEC editionNEC 2023NEC 2023
Compliance score95/100 (Strict)95/100 (Strict)
Electrician licenseRequiredRequired
License nameElectrical LicenseElectrical License
Permits requiredYesYes
State amendmentsYesYes
Homeowner exemptYesYes

Idaho and Oregon have very similar electrical code environments. The main differences will be at the city and county level rather than statewide policy.

Licensing requirements

Idaho

Idaho requires a Electrical License through the Idaho Division of Building Safety. Homeowners are exempt for work on their own primary residence.

Oregon

Oregon requires a Electrical License through the Oregon Building Codes Division. 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 Idaho or Oregon, 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, Idaho or Oregon?

Both states score equally at 95/100. The score reflects NEC edition recency, licensing requirements, permit enforcement, and state amendments.

Is my electrician license from Idaho valid in Oregon?

Electrician licenses are generally not transferable between states. If you hold a license in Idaho, you will typically need to apply separately in Oregon. Some states offer reciprocity agreements, but these vary. Contact the licensing authority in Oregon directly for requirements.

Is the wire size different in Idaho vs Oregon?

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 Idaho and Oregon. The ampacity values have not changed since NEC 2017.

Do both Idaho and Oregon 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.

Idaho electrical codeScore 95/100, NEC 2023, full licensing detailsOregon electrical codeScore 95/100, NEC 2023, full licensing detailsAll 50 statesNEC adoption, compliance scores, and state rankings
Requirements vary by state. NEC edition, licensing, permits, and GFCI rules differ by jurisdiction. Check your state or pick it below for personalized info across WireRef.
Important: For reference only. Not a substitute for a licensed electrician. Electrical work can cause serious injury, death, fire, or property damage if performed incorrectly. Always hire a licensed electrician for electrical work, especially for service upgrades, panel work, and 240V circuits. Values are derived from NFPA 70 (NEC) for educational purposes. Always verify against your locally adopted NEC edition and amendments - local jurisdictions may enforce stricter requirements. WireRef provides reference information only and is not responsible for work performed based on this content. NEC® is a registered trademark of the National Fire Protection Association. Free NEC access via NFPA · OSHA Electrical Safety · Terms of use.

NEC 2023 references verified April 2026