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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.
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