UN GTR No. 21 Phase 4 will consider fuel-cell electric vehicles, measurement alternatives for highly integrated systems, modifications for more efficient test methods, and alignment with UN Regulation No. 177 based on inputs EVE-87-08e, EVE-87-09e, EVE-87-11e, EVE-88-12, EVE-85-06e, and EVE-74-10e. UN GTR No. 22 Phase 4 will explore conditioning cycles and readiness monitors for official testing, investigate minimum performance requirements for certified range, and consider establishing minimum performance requirement values for additional lifetime of ten years and 200,000 km, drawing on input EVE-96-06e. UN GTR No. 25 Phase 3 will amend Annex 2 provisions, verify reported virtual distance, reconsider minimum performance requirements regarding mileage and lifetime thresholds, and consider energy throughput as a threshold.

The document presents Norway’s electrification progress for light duty vehicles (LDVs) and heavy duty vehicles (HDVs). Norway has 994,000 electric LDVs and 5,300 electric HDVs from a total fleet of 3.4 million LDVs and 73,000 HDVs. In April 2026, EV market share reached 98.6 percent with 107 municipalities achieving 100 percent market share. The document reports EVs represent 2-7 percent of registered vehicle fires, with fossil fuelled vehicles accounting for up to 90 percent. Research findings indicate battery degradation is driven by operating conditions, with cold climate introducing dual effects and battery management systems being key durability drivers.

UN GTR No. 25 addresses minimum performance requirements, lifetime requirements, and metrics for heavy-duty vehicles. Lifetime requirements are 12 years and 700,000 km or 15 years and 875,000 km for Category 1-2 vehicles exceeding 7.5 tonnes and Category 2 vehicles exceeding 16 tonnes. An optional annex proposes different metrics including years, kilometres whichever comes first, and energy throughput in monitoring. Capacity retention requirements for N₃ vehicles exceeding 16 tonnes are specified at 12 years and 700,000 km and at 15 years and 875,000 km.