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VFR Terminal Area (VTA) 1:250 000 Scale (1 inch = 4 statute miles) Published for areas of very complex, busy airspace and valid until there are significant new changes, typically around 2 years; until then find updates in: NOTAMs (up to 56 days) CFS (planning section) VFR Terminal Area Routes - many aircraft may be following these Altitudes and levels of airspace Check points and call points indicate very heavy air traffic