O ALL NC. E. NC WITH 'CHARTER NC' OR 'PUBLIC TRANSPORTATION' ON MW CERT MUST HAVE LANDING PMT OR RISK A/C BEING IMPOUNDED. EXCEPTION FOR AMBULANCE FLTS & CHTR NC UNDER 27,500 LBS UNLESS OPERATING DOMESTICALLY OR STAYING IN COUNTRY MORE THAN 48 HRS. F. 0/F PMT REQ WHEN IN COLOMBIAN FIR BOUNDARIES OVER WATER O