What 29 CFR 1910.178 requires (plain English)
29 CFR 1910.178 governs powered industrial trucks (PITs): forklifts, order pickers, reach trucks, and similar vehicles used to lift and move materials. Because these vehicles are heavy, can tip over, and operate around pedestrians, they cause serious struck-by, tip-over, and crushing incidents every year. The standard covers truck design and approval, maintenance, safe operating practices, and, most prominently in enforcement, operator training and evaluation.
Operators must be competent, as demonstrated by successful completion of training and evaluation before they operate a truck on their own. Training must combine three elements: formal instruction (lectures, video, written material), practical hands-on training, and an evaluation of the operator's performance in the actual workplace. Training must also be truck-specific and workplace-specific, covering the type of vehicle and the conditions where it will be used (surface, pedestrians, ramps, loads, hazardous atmospheres). The standard recognizes eleven truck designations (such as D, E, G, and LP types) matched to the environments where they may safely operate.
Each operator's performance must be re-evaluated at least once every three years, and refresher training is required after an accident or near-miss, when unsafe operation is observed, when the operator is assigned a different type of truck, or when workplace conditions change. Trucks must also be examined before each shift and removed from service if unsafe. This combination of certification, re-evaluation, and daily inspection is what OSHA compliance officers look for.