The International Regulations for the Prevention of Collision RULE at Sea (COLREGS) apply to all vessels, from kayaks to ocean-liners, on all of the oceans and bodies of water outside the magenta (red) Demarcation Line printed on charts.
Source: wiktionary
There are no material differences between the COLREGS and Inland Rule.
Source: wiktionary
The proposed algorithm is based on modified velocity obstacle which applies encounter situation judgment and decision-making of autonomy hazard avoidance of ship, which also take COLREGS into account.
Source: wiktionary