oj commiss opinion april address kingdom netherland implement regul eec ratif member state access unit nation convent code conduct liner confer eec letter date director gener ship maritim affair ministri transport waterwai netherland submit document opinion commiss accord articl regul eec bill approv unit nation convent code conduct liner confer bill rule sea transport market sea transport act explanatori memorandum bill examin document commiss view full account requir regul subject modifi articl draft sea transport act order full account provis reciproc refer articl regul paragraph question read modifi definit reciproc refer articl govern netherland readi make amend basi commiss deliv favour opinion propos legisl brussel april commiss georg contogeorgi member commiss