This guide is designed primarily for the use of U.S. Training and Employment Service personnel and affiliated State agencies engaged in such activities as interviewing, counseling, and planning educational programs for applicants. It should also prove useful to persons involved in related activities in schools, vocational guidance or rehabilitation centers, industrial personnel offices, and other institutions or establishments. The guide defines and briefly discussed General Educational Development (GED). Application of GED in Career Planning is described. The primary purpose of determining the GED of an individual is to provide a criterion for use along with other information in relating him to suitable vocational goals. A GED Academic Level Chart is presented, which contains overall criteria for use in determining an individual's general educational development. Each level begins on a separate page, and is described by five categories of information: Definition of reasoning development; definition of mathematical development; mathematics curriculum; definition of language development; and language curriculum. Eight examples are given which illustrate methods of using the chart, along with the Worker Traits Arrangement of the DOT, for career planning. An appendix presents a verification of curriculums. (DB)