Bill, what's the max allowed weight of a DCI 76 seater per the PWA?
There is language in the TA allowing Skywest to operate an aircraft in a non DCI operation that is larger than what is allowed for DCI. Just look at those limits in section 1 and look at the MRJ specs and you can figure out which variant they are allowed to operate in a non DCI operation that is larger than 76 seats.