council decis octob conclus amend montreal protocol substanc deplet ozon layer ec council european union regard treati establish european commun articl conjunct sentenc articl subparagraph articl thereof regard propos commiss regard opinion european parliament commun view respons environ decis eec parti vienna convent protect ozon layer montreal protocol substanc deplet ozon layer decis eec approv amend protocol decis ec approv amend protocol recent evid adequ protect ozon layer higher degre control trade ozon deplet substanc requir provid montreal protocol amend evid addit monitor control trade control ozon deplet substanc methyl bromid amend montreal protocol introduc control adopt montreal septemb commiss behalf commun part negoti agreement amend commun adopt measur area cover amend undertak intern commit area commun approv amend montreal protocol provis relat trade control substanc commun parti implement respons commun decid articl amend montreal protocol substanc deplet ozon layer approv behalf commun text amend attach decis articl presid council authoris design person person empow deposit instrument approv amend behalf commun secretari gener unit nation accord articl vienna convent protect ozon layer read conjunct articl amend montreal protocol articl decis publish offici journal european commun luxembourg octob council presid fabiu oj oj oj oj