The purpose of industrial training should be to fit all workers for the job they are doing and, in a rapidly changing society, to prepare them for the jobs they might be doing in the foreseeable future. Although many problems are common to all forms of industrial training, different difficulties predominate in different fields, and it is therefore advisable to examine industrial training in three parts: apprenticeship training; non-apprentice training for new entrants to industry; and retraining of people whose job is changing. The Industrial Training Act, 1964, embodies many of the principles of the white paper. Its purpose is to 'establish industrial training boards, and to give to those boards certain responsibilities for the promotion of training'. A compulsory levy can provide such an incentive, but only if it is sufficiently heavy to make firms anxious to gain the offered grant.