The RV Industry Association (RVIA) board of directors decided at its meeting this week to delay the implementation and enforcement date of the grounding monitor interrupter (GMI) requirement for new motorhomes. The board initially voted to adopt the requirement in June, expecting sufficient availability of GMI devices for manufacturing to meet the 1 January 2027 effective date and mandatory enforcement for model year 2028 production. Over the summer and autumn the Standards Steering Committee monitored availability and found a continuing lack of fully developed, listed GMIs. The board determined that the previously established model year 2028 deadline is no longer feasible given current supply chain realities and testing constraints. The implementation schedule will be formally revisited at the February board meeting once sufficient availability of listed GMI devices from multiple suppliers is confirmed.
