There are proposed manual handling lifting limitations that establish parameters for employees' safe maximum lifting weights. The maximum safe lifting weight for a woman is 16 kg, while the maximum safe lifting weight for a man is 25 kg, according to legal manual handling rules. These limits can be exceeded when using lifting devices such as lifts or scaffolds. In general, the maximum safe working height is 45 degrees. However, some people may have problems maintaining this angle for long periods of time, so you should adjust your working environment to allow for changes in posture. For example, if you require workers to maintain an upright position for more than an hour at a time, then they should take breaks every 20 minutes to 30 minutes to prevent long-term injury. The American Conference of Governmental Industrial Hygienists has recommended limiting repetitive hand movements to no more than eight hours per day. This allows time for the hands to recover and reduces the risk of developing carpal tunnel syndrome and other work-related injuries. The Occupational Safety and Health Administration (OSHA) also provides guidelines for safe hand-loading procedures. Their goal is to ensure that workers are not exposed to hazards such as falls from heights, exposure to electrical currents, excessive temperatures, etc. Employees should always use caution not to overexert themselves during loading and unloading tasks and never lift more than what they can handle safely over their head.