The source of data on the capacity and occupancy of tourist accommodation establishments in Poland is a continual survey of the Central Statistical Office, based on KT-1 reports on occupancy of tourist accommodation establishments in each month. Reporting units report on precise location, type and category of an establishment as well as on the number of: rooms, beds and catering establishments. Moreover they inform on occupation of an establishment in a given month, i.e. on the number of days when an establishment is open, nominal number of overnight stays and/or rooms, as well as tourists accommodated and number of overnight stays and rented rooms (separately for foreign tourists).