The general purpose of the occupational analysis is to provide workable, basic information dealing with the many and varied duties performed in the welding occupation, It includes the basic manipulative skills and technical information in the following four areas: oxy/acetylene, electric arc, tungsten inert-gas arc, and metallic inert-arc welding. The document opens with a brief introduction followed by a job description. The bulk of the document is presented in table form. The four areas are broken down into a number of tasks and for each task a two-page table is presented, showing on the first page: tools, equipment, materials, objects acted upon; performance knowledge (related also to decisions, cues and errors); safety--hazard; and on the second page: science; math--number systems; and communications (performance modes, examples, and skills and concepts). Also included in the document are a brief note on abbreviation of welding terms, and 2 sections on safety (eye protection and general safety practices). (BP)