This document specifies requirements and provides recommendations for repetitive work tasks involving repetitive movements and exertions of the upper extremity. It provides guidance on the identification and assessment of risk factors commonly associated with repetitive movements and exertions of the upper limbs, thereby allowing evaluation of the related health risks to the working population. The recommendations apply to the adult working population and are intended to give reasonable protection for nearly all healthy adults. This document does not address the manual handling of objects while using lift-assistive devices such as exoskeletons and does not address the needs of pregnant women or persons with disabilities.