One of a series of nine reports of Project ACTIVE (Attaining Competence for Teaching in Vocational Education), this report focuses on the criteria for assessing mastery of the professional competencies (skills) important to vocational educators serving disadvantaged students. An overview of competency-based vocational teacher education (CBTE) and the Florida exemplary CBTE project is provided. Part 1 describes the competency identification phase of the disadvantaged component including review of related research, a questionnaire survey of Florida vocational educators involved with the disadvantaged, the findings (competencies listed in rank order with mean importance ratings), and conclusions. Part 2 describes the procedures for identifying and validating of specific criteria for assessing mastery of the competencies and lists the criteria in a 15-page table under 95 competency statements grouped into the following categories: (1) Program planning, development, operation, and evaluation, (2) instructional planning, (3) teaching methods-media, (4) student evaluation, (5) management, (6) guidance, (7) school, community, and student relations, and (8) unique competencies. It is recommended that the assessment criteria be reviewed and revised to fit the needs of particular inservice or preservice programs designed to prepare or upgrade administators/supervisors, directors, and teachers of disadvantaged vocational education programs. Appendixes contain instruments used in the study. A bibliography is included. (TA)