The duration of federal workers' compensation benefits varies depending on the severity of your injury and your ability to return to work. In general, you may be eligible for benefits as long as you are unable to work due to your work-related injury or illness. If your condition improves and you can return to work, your benefits may be adjusted or terminated accordingly. It's important to keep in mind that each case is unique, and the length of time you can receive benefits will be determined based on your specific circumstances.