The National Electrical Code (NEC) is constantly evolving to improve electrical safety. In 2026, a significant update impacting RV campgrounds will take effect: the requirement for Ground Monitoring Interrupters (GMI) on RVs.
Think of GMIs as advanced safety guards for your electrical connection. When an RV is plugged in, the GMI checks the pedestal’s grounding connection before allowing power into the RV. If it detects a problem, it cuts off power, preventing potentially dangerous electrical hazards.
Why are GMIs Important?
Damaged or misused shore cords (the cables connecting an RV to the pedestal) and pedestal receptacles can pose serious risks. GMIs add a crucial layer of protection by ensuring a solid grounding connection, minimizing the risk of electrical shocks and equipment damage.
What’s Changing and When?
This requirement, introduced in the 2023 NEC, will be enforced starting in the fall of 2026. This gives campground owners time to prepare and upgrade their electrical systems.
How Can Campgrounds Prepare?
- Partner with a qualified electrician: A thorough assessment of your electrical infrastructure is crucial. This includes transformers, distribution panels, breakers and pedestals.
- Prioritize regular maintenance: Regular inspections and upkeep are essential for safe and reliable power distribution. Testing connections, GFCIs and inspecting wiring and equipment should be part of a routine maintenance plan.
- Consider environmental factors: Weather conditions can impact your electrical system. Underground systems offer better protection but require more frequent inspections.
- Plan for increased power demands: Modern RVs have growing power needs. Ensure your system can handle the load while maintaining safety.
- By proactively addressing these points, campground owners can ensure a smooth transition, meet the new safety standards, and provide a secure and enjoyable experience for their guests.
Need more information? View the background and fact sheet.
