Staffing of work that is blue-collar in nature - requiring physical activity or operation of machinery and falls outside of office/clerical staffing. Job titles in the manufacturing setting include - assembler, operator-skilled trades worker (welder, electrician, etc.); in the warehouse and distribution setting job titles are shipping and receiving clerk, material mover, picker-packer, and forklift operator. Other titles are of a construction laborer, truck driver, janitor, cook, waiter/waitress, security guard, and personal care aide.