Section 4.17 - Restrictions on Commissions(1) A Full Branch Commission shall have no limitations;(2) A Warrant Commission is of limited scope, within a geographic/route limitations inscribed thereupon. The holder of a Warrant Commission is authorized to serve as a Pilot of vessels of any type, service, origin or destination;(3) A Transit Commission is of limited scope within geographic/route limitations inscribed thereupon. The holder of a Transit Commission is authorized to serve as a Pilot of vessels of no greater than 10,000 gross registered tons, including the sum of tug and barge units individual gross tonnages; but only when in uninterrupted transit from a point of origin outside of District Three to a point of destination also outside of District Three, with no landings, dockings, or undockings, and remaining underway at all times other than in response to an emergency or unforeseen weather restrictions