decis ec efta joint committe common transit march amend appendix convent common transit procedur ec joint committe regard convent common transit procedur articl thereof intern comput network requir enabl exchang inform compet author implement computeris transit system introduc decis joint committe european commun develop common commun network common system interfac ccn csi fulfil requir extend ccn csi efta countri provid establish particip amend appendix convent decid articl appendix convent amend paragraph insert paragraph articl quot exchang inform foreseen paragraph common commun network common system interfac ccn csi commun contract parti financi particip efta countri relat issu agre commun efta countri quot articl decis enter forc march brussel march joint committe frida nokken chairman oj oj