(a) An application for indemnification with respect to a claim filed under this article for permanent disability of a public school teacher or public school employee shall be submitted by that person unless the person is mentally incompetent, in which case the application may be made on such person's behalf by the parent, spouse, guardian, or other authorized individual. An application for indemnification with respect to a claim filed under this article for the death of a public school teacher or public school employee shall be submitted by the individual authorized to administer the estate.

(b) An application for indemnification with respect to the death or permanent disability of a public school teacher or public school employee who is killed or permanently disabled by an act of violence in the line of duty on or after July 1, 2001, must be made within 24 months after the date of the death or disability.