"Recommended weight limit" (RWL) is most accurately defined as:

The "recommended weight limit" (RWL) is defined as the weight that healthy workers can lift repeatedly over the course of an eight-hour workday without increasing the risk of injury. This definition reflects the ergonomic principles utilized to assess safe lifting practices and to establish guidelines that help reduce the incidence of musculoskeletal disorders among workers.

This limit takes into account factors such as the duration of the lift, the frequency of lifting tasks, the posture involved in lifting, and other workplace conditions that may affect the safety and health of the worker. By focusing on healthy workers, RWL provides a benchmark that can be used in work environments to create safer practices and to adjust work tasks accordingly to support employee health.

The other options do not accurately capture the essence of RWL. The maximum weight allowed by regulation may vary based on specific regulations and doesn’t account for individual worker capability. An average weight that multiple workers can lift does not consider individual variations in strength or the specific conditions of the task. Lastly, weight limits set by equipment specifications typically pertain to machinery and do not directly relate to safe manual handling practices for workers.