30. Recalling the discussion on ECE/TRANS/WP.29/GRSG/2013/29 at the previous session of GRSG, the expert from AEGPL presented GRSG-106-12 supplementing his proposal to insert into UN Regulation No. 67 new provisions for preventing a flow of liquefied petroleum gas (LPG) into the petrol or diesel tank, and vice versa. GRSG noted some comments. The expert from Germany raised a study reservation and preferred to organize, if necessary, a meeting with interested experts to further discuss this subject. GRSG agreed to resume consideration on this matter at its next session on the basis of a revised proposal jointly prepared by the experts from Germany and AEGPL.