This user manual describes procedures for using Version 3.0 Computerized Placement Tests (CPTs) software and provides information about the hardware required to operate it. The software features the College-Level Mathematics (CLM) test, Seamless Serial Testing branching capabilities, new system installation and uninstallation procedures, and new Main Menu features. CPTs Version 3.0 continues to provide users with the ability to administer any or all of the original four CPTs (in the areas of reading comprehension, sentence skills, arithmetic skills, and elementary algebra skills), in addition to the new CLM test. The four original CPTs contain only multiple-choice questions. The CLM introduces free-response (open-ended) questions; however, most of the questions remain multiple choice. The CPTs are part of the ACCUPLACER system of student information management. The manual contains the following sections: (1) introduction; (2) system requirements; (3) system installation; (4) system operation; (5) reporting; (6) uninstalling CPTs; (7) interfacing CPTs with institutional systems; (8) CPTs error messages; (9) a glossary; and (10) six appendices that include lists of prompt messages and critical error messages. Twenty-nine pages of tables of scaled scores for CPTs, as well as college codes for data entry, are included. (SLD)