+x Tim Dawson - 3/3/2020 1:57:46 PMCzech AIS advise us that these areas are not included in their official 1:500,000 scale ICAO chart for Czech Republic. If a country has decided that a class of areas are not suitable for inclusion on their own national charts, it is our policy not to include them in ours unless many customers ask for them and show clearly how they would benefit from them.