A survey of the work currently in progress in Czechoslovakia in the field of applying ionizing radiation to conservation of objects of art and museum collections. Particular attention is paid to a new complex radiation and chemical method of treatment of wooden objects attacked by insects or other harmful agents. The radiation disinfestation procedure developed in the Nuclear Research Institute at Rez effectively exterminates the wood-boring insects within the whole treated object, saves staff time, provides a long-term preventive protection and does not influence the external appearance of the wood. finally, describes the project of Laboratory for Radiation Treatment and Chemical Conservation which is to be put into operation in 1979 at the Central Bohemian Museum at Roztoky near Prague and to apply the new method on a centralized large-scale basis.