Fully autonomous ships, which are self-steering according to pre-programmed algorithms of choices and considerations (autonomy level A) could hardly meet the requirements for human control and simultaneous decision competence stipulated in COLREG.As possible solution proposals, it has been considered whether autonomous ships at level A could be considered “not under command” or “restricted in her ability to manoeuvre” according to COLREG regulation 3, thereby obliging all other ships to “keep out of her way”59. It is our assessment that a ship at autonomy level A that is capable of navigating cannot be considered ”not under command” though the ship is not steered by a simultaneous human decision competence, but on the basis of pre-programmed choices.