The 9614-3 part of JHN is an IEC standard, which defines the requirements for powered industrial trucks. It is applicable to all powered industrial trucks, except for tractors, and is applicable for electric, gas, or liquid fueled trucks. The standard outlines general safety, machine construction, truck control system, operator's cab and workplace, overhead protective structures, lighting, and markings. It also includes requirements for test methods, quality management systems, safety signs, and other requirements.