commiss decis april request exempt submit netherland pursuant articl council direct eec approxim law member state relat type approv motor vehicl trailer notifi document number dutch text authent ec commiss european commun regard treati establish european commun regard council direct eec februari approxim law member state relat type approv motor vehicl trailer amend direct ec european parliament council articl thereof request exempt submit netherland januari reach commiss januari contain inform requir articl direct eec request concern instal liquefi petroleum ga lpg equip type class vehicl reason request equip meet requir direct concern council direct eec march approxim law member state relat liquid fuel tank rear protect devic motor vehicl trailer amend direct ec european parliament council march found test perform ascertain safeti instal lpg fuel system tank ec regul demonstr accept level safeti secur order assur safeti vehicl servic member state period carri leak tight test pressur servic pressur commun direct concern amend order permit product vehicl power lpg measur provid decis accord opinion committe adapt technic progress set direct eec adopt decis articl request submit netherland exempt product place market type class vehicl power liquefi petroleum ga approv articl decis address kingdom netherland brussel april commiss erkki liikanen member commiss oj oj oj oj