The Airport Authority of Thailand is established according to the Basic Condition of the international air transportation in the Warsaw convention to administer work in all areas. Air carriage of passengers, baggage, cargo and mail are subjects to certain national and international laws and regulations which are administered by government authorities in certain countries through their representatives at the airport. In order to carry out the least possible friction, it is of the utmost importance that airlines have good relationship with the airport management. Therefore, meetings are arranged regularly between airport management and representatives of airlines to be attended by station management or their substitutes on these topics: