The report indicates the importance of wood preservation in Japan, which is the world's largest importer. The main hazards of timber are listed, fungi, insects and marine borers. Besides wood preservation fire protection treatments are also important in Japan. Classifications are given of the durability and treatability of the timbers used. In describing the wood preservation industry, the amounts of preservatives used and the volume of the various wooden commodities that have been treated during the past 25 years are detailed. The various Japanese Standards that are used for wood preservation treatments are listed, and the performance and quality requirements of the main ones indicated. The report lists all the organizations which are concerned with wood preservation, including those concerned with research into timber deterioration and wood protection, and adds some other organizations of general interest. It is concluded that the future of the industry appears to be bright. The report ends with an Appendix giving detailed information of the wood preservation plants in Japan, 174 pressure plants and 50 other kind. Some Tables regarding fires and fire tests have been added. A list of 32 references is included.

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