The Act concerns the prevention and control of diseases in timber (17 sections). Section 4 specifies the powers of the Governor in council, section 5 the powers of the chief executive and section 6 the powers of forest officers. After a timber disease has been declared to affect an area or part thereof, measures for the extermination, or the prevention or control of the dissemination of the disease need to be taken. The Act defines offences and also the related penalties (sects. 7 and 12).