The second part of regulation 5 presupposes, however, a simultaneous human decision competence since it refers to ”a full appraisal of the situation and of the risk of collision”.Should future technology make it possible for ships to communicate directly with each other and coordinate their course/speed etc., it would be a technological level that COLREG regulation 5 does not take account of. Anti-collision systems as those used in air traffic would require new international regulation.