This catalog lists and describes the tasks performed by a laser technician and standards for their performance. Each duty contains performance objectives for related tasks. Included in the objectives are standards that must be met and conditions for performance of the tasks. Performance guides provided for each objective identify the conditions required to complete the task as well as a standard of occupation-related requirements for acceptable completion of the task. Tasks include maintaining records; installing, maintaining, and analyzing laser systems; and repairing temperature control systems, beam generation systems, excitation systems, low voltage power supply, RF systems, vacuum systems, and gas supply systems. The catalog also contains the following appendixes: the contents of the standard tool kit used by laser systems technicians; a listing by percent of use of those tools by surveyed incumbents; a bibliography of sources of standards cited in the catalog; a cross-reference table listing the duties and tasks as they appeared in the survey instrument; the disposition of duties and tasks within this catalog, and the results of the incumbent responses by number and percent performing; a bibliography of state-of-the-art references identified during the catalog development; and a graphic representation of the Vocational-Technical Education Consortium of States developmental model. (KC)