council direct juli approxim law member state relat tread depth tyre categori motor vehicl trailer eec council european commun regard treati establish european econom commun articl thereof regard propos commiss regard opinion european parliament regard opinion econom social committe council repres govern member state meet council decemb adopt resolut road safeti invit commiss submit propos connect council context rule minimum tread depth tyre individu specif problem object work schedul road safeti year commun european parliament pass resolut februari commiss programm road safeti year includ tread depth tyre commiss provis adopt provis kind ensur higher degre safeti nation requir govern minimum tread depth vari member state differ problem regard complianc road law motorist car territori member state harmon requir facilit free movement vehicl individu travel member state remov barrier trade distort competit adopt direct articl member state step ensur servic life road tyre categori vehicl defin annex council direct eec februari approxim law member state relat type approv motor vehicl trailer amend direct eec tread depth main groov tread surfac mm main groov mean broad groov central part tread surfac cover quarter width tread surfac articl consult commiss member state exclud scope direct make special provis vehicl declar histor interest origin equip tyre pneumat tread depth mm provid equip tyre except condit public road articl consult commiss member state adopt publish june law regul administr provis compli direct januari member state inform commiss text provis adopt implement direct articl direct address member state brussel juli council presid duma oj oj oj oj oj oj oj