This document contains 12 competency profiles for tech prep courses within the engineering technologies cluster. The document consists of the following sections: (1) systemic curriculum reform philosophy--Ohio's vision of tech prep and its six critical components; (2) an explanation of the process of developing the tech prep competencies; (3) a listing of the partners from business and industry who participated in the competency development process; (4) a list of the educational partners in the process; (5) a sample tech prep competency profile for a manufacturing technician program; (6) a short explanation of how to use the document; (7) a matrix and definitions for each of the 12 technical occupations within the engineering technologies cluster; (8) an essential competencies section that outlines the units that appear in each of the individual occupations as well as in various cluster combinations; and (9) 12 sets of competencies, each containing both core and specialized units for a specific occupation within the engineering technologies core. The competencies are supplied for the following occupations: electronics technician, electrical maintenance technician, instrumentation control technician, electromechanical technician, mechanical technician, industrial manufacturing technician, CADD (computer-assisted design and drafting) technician; tool and die technician, plastics technician, quality control technician, computer systems technician, and computer programming technician. Contains 50 references. (KC)