Tennessee
Currently enforces NEC 2017
NEC Code Adoption in Tennessee
Tennessee currently enforces NEC 2017. All electrical installations and modifications must comply with this code edition and any applicable state amendments.
Current Electrical Code Status
Active NEC Edition: 2017
All licensed electricians, contractors, and apprentices working in Tennessee must maintain current knowledge of NEC 2017 and any state amendments. Many of these amendments address climate, seismic considerations, or local infrastructure requirements not covered by the base NEC.
Electrical Licensing in Tennessee
Tennessee electricians must be licensed through Board Licensing Contractors (verify). All electricians performing electrical work must hold the appropriate license classification for the type of work they perform.
License Types: Journeyman, Master, Contractor Continuing Education: Requirements vary (check with verify) Reciprocity: Tennessee has reciprocal licensing agreements with Kentucky, Mississippi, Virginia. This allows licensed electricians from those states to work in Tennessee under certain conditions.
Workforce Data
Tennessee employs approximately 28,000 electricians with a mean hourly wage of $30.44 according to the U.S. Bureau of Labor Statistics. This represents a significant portion of Tennessee’s skilled trades workforce and reflects the ongoing demand for qualified electrical professionals in the state.
What This Means for Your Calculator
Tennessee is currently on NEC 2017. While the FieldLab Electrician NEC Calculator bundles NEC 2023 and 2026, the core calculations — voltage drop, wire sizing methodology, conduit fill, and Ohm’s law — work identically across editions. When Tennessee updates its code, you’ll already have the tables ready to reference.