Basically veterans that are awarded 100% schedular most likely have disability ratings that are rated around 230% but VA combines their ratings and only pays them 100%. TDIU/IU is when a veteran is rated service connected and is less than 100% but their condition is so severe that VA awards them TDIU/IU and pays them the 100% rate. The veteran is considered unemployable. P & T is when a veteran has a disability that is reasonably certain to continue throughout his or her life. P &am