NEC Code in Effect
As of February 1, 2020, the 2020 National Electrical Code (NEC) is in effect in one state, the 2017 NEC is in effect in 31 states, the 2014 NEC is in effect in 11 states, the 2011 NEC is in effect in one state, and the 2008 NEC is in effect in three states.
Refer to the map below and contact your local building department Authority Having Jurisdiction (AHJ) for the Code in effect for your project.
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