The requirement in the current national regulations that the equivalent radon concentration in houses constructed in Poland after January 1st 1995 must not exceed 100 Bq/m³ appears presently to be impossible to implement from that date onwards. The extensive range of operations required to realize this implementation is outlined. Despite the present difficulties and delays in this matter, it would be inhuman not to undertake every effort to decrease the number of lung cancers due to exposure to radon in Poland. A national programme for reducing radon exposure in Poland which would resemble those realized in other countries should, therefore, begin as soon as possible.