commiss direct ec june adapt technic progress council direct eec relat roll protect structur wheel agricultur forestri tractor text eea relev commiss european commun regard treati establish european commun regard council direct eec march approxim law member state relat type approv wheel agricultur forestri tractor amend direct ec european parliament council articl thereof regard council direct eec june approxim law member state relat roll protect structur wheel agricultur forestri tractor amend act access austria finland sweden articl thereof order improv safeti face grow varieti tractor market provis requir ensur equal treatment tractor revers drive posit revers seat steer wheel design increas oper versatil improv supervis implement arrang test roll protect structur harmonis arrang defin code organis econom cooper develop oecd offici test protect structur agricultur tractor dynam test measur provid direct accord opinion committe adapt technic progress establish articl direct eec adopt direct articl annex ii iii direct eec amend shown annex hereto articl juli member state refus grant ec type approv issu document provid indent articl direct eec grant nation type approv respect type tractor prohibit entri servic tractor tractor question meet requir direct eec amend direct januari member state longer issu document provid indent articl direct eec respect type tractor meet requir direct eec amend direct refus grant nation type approv respect type tractor meet requir direct eec amend direct articl member state bring forc law regul administr provis compli direct june latest forthwith inform commiss thereof member state adopt provis refer direct accompani refer occas offici public member state determin refer made member state commun commiss text main provis nation law adopt field govern direct articl direct enter forc dai public offici journal european commun articl direct address member state brussel june commiss martin bangemann member commiss oj oj oj annex annex ii iii direct eec amend annex item indent ad quot tractor revers drive posit revers seat steer wheel fit option seat test method part annex iii appli quot annex ii item ad quot case tractor revers drive posit revers seat steer wheel impact longitudin appli heaviest extrem mass tractor crush test extrem impact lightest extrem impact side lastli crush test carri lightest extrem quot part annex iii amend text ad end paragraph item quot case tractor revers drive posit revers seat steer wheel point impact determin relat intersect median plane tractor plane perpendicular straight line pass point equidist seat refer point quot item ad quot case tractor revers drive posit revers seat steer wheel clearanc combin clearanc determin posit steer wheel seat case tractor fit option seat test base combin clearanc seat refer point seat fit option roll protect structur enter combin clearanc seat refer point option seat propos test place calcul made determin clearanc seat refer point locat combin clearanc establish previous case test requir quot