44. Recalling the submission of GRPE-66-03, WP.29-160-38, WP.29-161-12 and WP.29-162-16, the expert from South Korea introduced GRPE-69-28 on (i) the Korean VIAQ guideline that had proved to be effective, (ii) the standards applied in various countries and (iii) the need to harmonize internationally the VIAQ requirements. He concluded his presentation by proposing that GRPE develop a VIAQ guideline, as a first step. GRPE agreed to report on this matter at the June sessions of WP.29 and AC.3 and to further discuss a possible strategy to tackle this issue at its January 2015 session.