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The Polish Classification of Types of Constructions (PKOB) is a systematized list of construction objects which are the final products of construction activity. It was compiled based on the European Classification of Types of Construction (CC), which is in accordance with the UN recommendations.

PKOB has four levels structure i.e. sections, divisions, groups and classes. The coding system, the descriptions of groupings and the explanatory notes defining the scope of classes are taken from the CC classification.

PKOB is designed for the needs of construction activity statistics, for making up construction reports, lists of buildings and flats, price statistics of construction objects and for national accounts. Moreover, the classification is used to classify construction objects. It may be used when an object changes its application, in the course of renovation, demolition and modernization of a construction object.

The Polish Classification of Types of Constructions (PKOB) was established by the Regulation of the Council of Ministers of December 30th, 1999 (JL No 112, item 1316). It was amended by the Regulation of the Council of Ministers of February 12th, 2002 (JL No 18, item 170).

The Polish Classification of Types of Constructions (PKOB) replaced the Classification of Types of Constructions, issued by the CSO President’s Order of October 25th, 1989.