This report analyses approaches to training of workers developed by parties to collective bargaining agreements. The Bureau of Labor Statistics examined 1823 major collective bargaining agreements each covering 1,000 workers or more. Fewer than 20% (344) of the agreements contained training and retraining provisions. Training clauses (provisions) were concentrated in six industries: transportation equipment, communications, machinery (except electrical), primary metals, utilities, and food industries. Three unions in particular were parties to significant numbers of negotiated training and retraining provisions: the Steelworkers (27), Auto Workers (40), and the Brotherhood of Electrical Workers (27). About 25% of the provisions (86 of 344) involved firms that employed 5,000 workers or more. A classification of agreements into groups by employment size indicated that the incidence of training provisions increased with the size of the bargaining unit. The nature and methods of training and the administration of provisions are also discussed. (Appendixes include selected training and retraining provisions; union sponsored programs in the maritime industry; and an indentification of clauses.) (PT)