An OTR with expertise in hand rehabilitation is assessing a COTA's service competency in hand function assessment. At what point is service competency established?
A.When the COTA consistently obtains the same results as the OTR
B.After the COTA passes the NBCOT examination
C.When the COTA has obtained a specified number of continuing education credits in hand rehabilitation
D.After the COTA has practiced for a minimum number of years, as specified by state licensure