Proposal to revise provisions and formulas in GTR 22 Annex 3, paras. 2.1.2. and 3.1.2., UN R154-04 Annex C1, Appendix 2, paras. 2.1.2. and 3.1.2., and UN R83-09 Appendix 5, para. 3.1.2. to make UBE_certified values positive and select the maximum absolute value. The document EVE-63-11e addresses concerns that when the interpolation method is applied under GTR No. 15 / UN R154, UBE_certified values become negative, contrary to regulatory intent. Revisions ensure UBE_certified is determined by selecting the maximum absolute value amongst vehicle H, vehicle L, and vehicle M where applicable.