The first Polish application containing the uniform text of the ordinance of the Minister of Infrastructure of April 12, 2002 on technical conditions to be met by buildings and their location in six versions: WT2012: WT after the amendment of November 6, 2012 - legal status as of February 23, 2013. WT2013: WT after the amendment of July 5, 2013 - legal status as of January 1, 2014. WT2017: legal status as of January 1, 2018 WT2019: legal status as of June 7, 2019 WT2020: legal status as of Dece