Since the 1960s for GFCI protection, the NEC has mandated Ground-Fault protection. Over time, advancements in technology have led to improved reliability and effectiveness of these devices. Consequently, numerous revisions have been made to Articles 210, 220, and 422 in the NEC to reflect these enhancements. For a comprehensive overview of the major changes in the 2023 NEC, click here for a free guide from National Electrical Code® expert, Mike Holt.