While both the Department of Defense and the Department of Veterans Affairs (VA) use the Department of Veterans Affairs Schedule for Rating Disabilities, not all the general policy provisions set forth in the Rating Schedule apply to the military. Consequently, disability ratings may vary between the two. The military rates only conditions determined to be physically unfitting, compensating for the loss of a military career. The VA may rate any service-connected impairment, thus compensating for the loss of civilian employability. Another difference is the term of the rating. The military's ratings are permanent upon final disposition. VA ratings may fluctuate with time, depending upon the progress of the condition. Further, the military's disability compensation is affected by years of service and basic pay; while VA compensation is a flat amount based upon the percentage rating received.