commiss opinion septemb address french govern implement council direct eec pilotag vessel deep sea pilot north sea english channel eec perman represent franc european commun letter date januari submit document commiss articl direct eec decre date introduc certif deep sea pilot order date decemb deal condit obtain deep sea pilot certif scope expertis requir copi letter date april chairman central committe french shipown examin document shown commiss french govern compli fulli oblig implement direct concern brussel septemb commiss richard burk member commiss