There is a book you can use, depending on the kind of disablement you have. You have the first, the second, and the third categories, but I'm not able to give you the meaning of the six categories because right now I don't know if there is a book like this that you can go to. There is a committee that decides what kind of disablement you have and then the category for the disablement, whether you are in the first, second, third, or fourth category.
Is that the question?