These guidelines for the use of labor market information are presented in order to improve program planning for vocational education in Pennsylvania by supplying necessary manpower supply/demand data. Once occupational needs are defined for a specific geographic area, a systems approach to program development can be utilized by vocational training agencies. Numerous tables present the manpower data, which illustrate the supply/demand postures for Pennsylvania in general as well as for 12 major and three smaller labor market areas in the state. A list of references and background information on interpreting the data are included. (AG)