council decis octob approv amend agreement cooper deal pollut north sea oil harm substanc bonn agreement eec council european commun regard treati establish european econom commun articl thereof regard propos commiss regard opinion european parliament regard opinion econom social committe decis eec council approv june agreement cooper deal pollut north sea oil harm substanc sign bonn septemb meet held bonn septemb contract parti agreement agre number amend design includ agreement provis pollut surveil activ order ensur implement paragraph ministeri declar adopt intern confer protect north sea held london novemb contract parti decid amend demarc zone skagerrak set articl agreement amend forc approv contract parti accord articl agreement decid articl amend agreement cooper deal pollut north sea oil harm substanc bonn agreement adopt contract parti meet held bonn septemb approv behalf european econom commun text decis amend attach decis articl presid council behalf european econom commun notifi depositari govern refer articl agreement adopt instrument approv luxembourg octob council presid bourgeoi oj oj oj oj decis septemb amend agreement contract parti agreement cooper deal pollut north sea oil harm substanc bonn septemb hereinaft refer agreement recal articl agreement cooper deal pollut north sea oil harm substanc bonn septemb agreement appli presenc prospect presenc oil harm substanc pollut threaten pollut sea north sea present grave immin danger coast relat interest contract parti recal paragraph xvi subparagraph ministeri declar intern confer protect north sea held london novemb recogn agreement provis refer surveil aid detect pollut prevent violat anti pollut regul desir extend scope agreement activ recogn adjust southern geograph limit skagerrak defin articl agreement agre amend agreement articl articl agreement amend read agreement appli presenc prospect presenc oil harm substanc pollut threaten pollut sea north sea area defin articl agreement present grave immin danger coast relat interest contract parti surveil conduct north sea area aid detect combat pollut prevent violat anti pollut regul articl ii articl agreement amend read purpos agreement north sea area mean north sea proper southward latitud skagerrak limit determin east skaw latitud amp prime amp prime english channel approach eastward line drawn fifti nautic mile west line join scilli isl ushant articl iii articl agreement amend read contract parti matter refer articl agreement call activ oper contract parti jointli develop establish guidelin practic oper technic aspect joint action coordin surveil refer articl articl iv articl agreement amend read contract parti undertak inform contract parti nation organ deal pollut kind refer articl paragraph agreement enforc pollut regul compet author respons receiv dispatch report pollut deal question measur mutual assist coordin surveil contract parti nation mean avoid deal pollut made intern assist mew wai pollut avoid effect measur deal major pollut incid kind dealt develop technolog conduct surveil experi surveil mean techniqu detect pollut prevent violat anti pollut regul includ cooper contract parti inform mutual interest deriv surveil activ nation programm surveil includ cooper arrang contract parti articl articl ad agreement surveil carri contract parti zone respons zone joint respons refer articl agreement contract parti bilater multilater conclud agreement make arrang cooper organ surveil part zone parti concern articl vi articl agreement amend read provis agreement interpret prejud right oblig contract parti intern law field prevent combat marin pollut case divis zone refer articl agreement invok preced argument matter sovereignti jurisdict divis zone refer articl agreement restrict right contract parti carri accord intern law surveil activ limit zone articl vii articl agreement amend read absenc agreement financi arrang govern action contract parti deal pollut conclud bilater multilater basi occas joint combat oper contract parti bear cost respect action deal pollut accord subparagraph subparagraph action contract parti express request contract parti contract parti request assist reimburs assist contract parti cost action action contract parti initi contract parti bear cost action contract parti request assist cancel request time case bear cost incur commit assist contract parti bilater multilater agreement arrang contract parti bear cost surveil activ carri accord articl articl viii contract parti notifi depositari govern approv amend accord articl paragraph agreement