Rehabilitation of the disabled. Vocational rehabilitation, act to provide for promotion of vocational rehabilitation of persons disabled in industry or otherwise and their return to civil employment, public no. 236, 66th Congress (H. R. 4438), as amended by public no. 200, 68th Congress (H. R. 5478), as amended by public no. 317, 71st Congress (H. R. 10175), as amended by public no. 222, 72d Congress (H. R. 4743).