Forward to appropriate ATS facilities, as a flight progresses, current flight plan and control information.
Coordinate flight plan and control information in sufficient time to permit the receiving facility to analyze the data and to effect any necessary additional coordination. This may be specified in a letter of agreement.
Coordinate with adjacent ATS facilities when airspace to be protected will overlap the common boundary.
Forward revisions of estimates of 3 minutes or more to the appropriate ATS facility.
Coordinate with adjacent facilities on IFR and VFR flights to ensure the continuation of appropriate air traffic services.