commiss direct adapt technic progress council direct eec approxim law member state relat field vision motor vehicl driver eec commiss european commun regard treati establish european econom commun regard council regul eec eec februari approxim law member state relat type approv motor vehicl trailer amend direct eec articl thereof regard council regul eec eec septemb approxim law member state relat field vision motor vehicl driver amend direct eec articl thereof vehicl design develop result influenc aerodynam research intend save fuel caus windscreen post consider rake current requir relat binocular obstruct due windscreen post amend order allevi difficulti encount manufactur produc vehicl optimum drag coeffici cd practic experi demonstr amend requir relat radio aerial defrost demist conductor integr windscreen order enabl optimum qualiti perform obtain compat highest perform radio instal permit increas perform effici windscreen defrost demist maintain good optic qualiti obstruct field vision measur provid direct accord opinion committe adapt technic progress direct aim remov technic barrier trade motor vehicl sector adopt direct articl list annex annex iv direct eec amend accord annex direct articl member state bring forc provis order compli direct octob forthwith inform commiss thereof articl direct address member state brussel commiss cockfield vice presid oj oj oj oj annex list annex amend appendix figur ad annex iii appendix figur ad annex iv annex amend point replac point angl bosdtruct quot quot pillar point exce cf annex iv appendix figur angl obstruct quot quot pillar passeng side point determin pillar locat symmetr relat median longitudin vertic plane vehicl angl obstruct quot quot pillar measur superimpos plane horizont section section start pm point situat locat defin point draw plane form angl upward relat horizont plane pass forward pm determin horizont section quot quot pillar start foremost point intersect quot quot pillar inclin plane cf annex iv appendix figur section repeat procedur take plane declin angl relat horizont plane pass forward pm cf annex iv appendix figur angl obstruct quot quot pillar driver side angl form plane view parallel start tangent join outer edg section tangent join edg section cf annex iv appendix figur angl obstruct quot quot pillar passeng side angl form plane view tangent join edg section parallel start tangent join outer edg section cf annex iv appendix figur point replac obstruct creat quot quot pillar fix movabl vent side window divis bar radio aerial rear view mirror windscreen wiper obstruct driver forward direct field vision horizont plane pass plane perpendicular plane declin forward horizont perpendicular plane declin horizont annex iv figur consid obstruct field vision embed print quot radio aerial quot conductor wider embed conductor millimetr print conductor millimetr quot radio aerial quot conductor cross zone defin direct eec relat wiper washer system motor vehicl quot radio aerial quot conductor cross zone width oj zone quot defrost demist quot conductor quot zigzag quot sinusoid form dimens maximum visibl width millimetr maximum conductor densiti conductor vertic cm conductor horizont cm point replac tabl ii set base coordin design seat back angl posit direct coordin set annex iv appendix figur pm point point intersect straight line longitudin vertic plane pass point tabl ii point mm mm mm mm mm mm pm mm mm mm point replac straight line join rotat tangent join outer edg section pillar driver side normal straight line cf annex iv appendix figur point delet point replac straight line rotat tangent join outer edg section pillar passeng side normal straight line cf annex iv appendix figur point replac angl obstruct measur inclin plane annex iv appendix figur relationship connect shown annex iv appendix figur point replac straight line set angl obstruct pillar driver side measur point straight line set angl obstruct pillar passeng side measur point point ad manufactur measur angl obstruct vehicl draw case doubt technic servic requir test carri vehicl annex iv amend insert appendix figur figur replac figur quot figur quot figur ad figur quot figur parallel angl obstruct pillar passeng side angl obstruct pillar driver side parallel quot figur figur exce millimetr