Electrical codes and standards
2020 NEC update
The Board of Electricity adopted the 2020 National Electrical Code (NEC) with an effective date of Nov. 17, 2020. Accordingly, the Department of Labor and Industry began enforcing the 2020 NEC on Nov.17, 2020. Electrical work authorized by permits issued on or after this date must comply with the 2020 NEC. Electrical license examinations are based on the requirements of the 2020 NEC beginning Jan. 1, 2021.
However, due to concerns regarding the availability of 2-pole GFCI circuit breakers, the department delayed enforcement of the requirements for 250-volt GFCI receptacles and outlet requirements found in NEC 210.8(A) and 210.8(F).
On April 5, 2021, DLI will begin enforcing the 250-volt GFCI receptacle and outlet requirements found in NEC 210.8(A) and 210.8(F). Industry circuit breaker manufacturers have confirmed that supply-chain challenges will be resolved in March 2021. Electrical work authorized by permits issued on or after April 5, 2021, must comply with the 2020 NEC.
Chapter 1315 of the Minnesota State Building Code adopts a national standard for the installation of electrical wiring, apparatus and equipment for electric light, heat, power, technology circuits and systems, and alarm and communication systems. Minnesota's electrical code consists of the National Electrical Code (NEC) as published by the National Fire Protection Association (NFPA). View electrical laws and rules.
2020 NEC
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Free access to the 2020 National Electrical Code (must create a free NFPA account for access)
2017 NEC
Bulletins and code resources
Agriculture buildings
Building codes
General safety
General wiring
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Electrical code requirements for accessory dwelling units (ADU)
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Type TC cable for the interconnection of mini-split air conditioning units
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Use of Type NM cable in garages and accessory buildings at multi-family dwellings
Hazardous (classified) locations
Licensing and inspections
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Technology systems – General summary of licensing and inspections
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Technology systems – Electrical licensing and inspection chart
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Technology systems – Important information for power-limited technicians
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Technology systems – Important information for technology system contractors
Questions?
Contact us at dli.electricity@state.mn.us or 651-284-5026.