 The separate company/vendor is assigned a geographic region where no other vendor is allowed to operate.In other words, when a passenger is picked up or dropped off in a community outside of the immediate Boston area, the company assigned exclusively to that community must be used to transport that passenger.For example, someone going from Boston to Dorchester (which is still part of Boston) might use any company, but someone traveling from Boston to Saugus would have to use GLSS (Greater Lynn Senior Services) for this trip.