Inland sea/observation time on NC/Ocean Toar for Inland Mate of tow


I’m graduating in May from Cal Maritime. The school offers a tug and barge class that results in a completed TOAR. The TOAR is an NC/Oceans TOAR though and I have inland tug sea time for the 30 days of required observation time. Since NC/ Oceans mate of tow supersedes and inland mate of tow my questions is whether I can use my inland time with my completed NC/Ocean TOAR for an inland mate of tow. I want to work on ship assist tugs so an inland mate of tow is all I should need.

Thanks in advance for any help.