Ability to utilize a variety of advisory data and information such as technical operating manuals, vehicle and equipment repair manuals, billing statements, time sheets, parts books and catalogs, electrical diagrams, hydraulic diagrams, procedures, guidelines, schedules, lists, hazardous materials lists, incident reports, inventory lists, logs, maps and non-routine correspondence. Ability to work under occasionally unsafe and uncomfortable conditions where exposure to environmental factors such as temperature variations, odors, toxic agents, smoke, potential violence, noise, wetness, machinery, electrical currents, disease, and/or dust can cause discomfort and where there is a risk of injury.