Pennsylvania Commutation of Compensation (COF) is a form of financial compensation provided to Pennsylvania workers who have suffered a work-related injury or illness. It is designed to provide workers with a lump-sum payment to help them offset the costs of medical care, rehabilitation, and lost wages due to their work-related injuries or illnesses. The payment amount is calculated based on the worker’s average weekly wage, the number of weeks of disability, and the amount of medical and rehabilitation expenses. There are two types of Pennsylvania Commutation of Compensation: temporary total disability (TTD) and permanent total disability (LTD). Temporary total disability is available to workers who are expected to recover from their injury or illness and return to work, while permanent total disability is provided to workers who, due to their injury or illness, are unable to ever return to work.