The following tests and techniques have been developed by the U.S. Emloyment Service for the measurement of occupational aptitude, clerical skills, literacy skills, and occupational interest: General Aptitude Test Battery (GATB), Nonreading Aptitude Test Battery (NATB), Specific Aptitude Test Battery (SATB), Clerical Skills Tests, Basic Occupational Literacy Test (BOLT), Pretesting Orientation Techniques, JEVS Work Sample Assessment, and Interest Check List (ICL). These tests and assessment techniques are described in detail in this report. These tests have wide applicability and are used by local offices of state employment services, schools, employment and training organizations, and many foreign countries. (RC)