18. The Group of Interested Experts on UN Regulation No. 117 reported on their considerations on how to avoid further complexity of this Regulation created by new requirements, annexes and series of amendments with transitional provisions, due to the upcoming introduction of tyre abrasion requirements (GRBP-81-26). Among various options, the Group recommended to introduce abrasion performance in a separate UN Regulation. While several GRBP experts supported this idea, some others pointed out that this issue should be further considered at the EU level, because UN Regulation No. 117 was already indicated in EU decisions as the place holder of tyre abrasion provisions.