Altering, for purposes of a certain property tax credit for a certain dwelling, the definition of "fallen law enforcement officer or rescue worker" to include disabled law enforcement officers or rescue workers who have died regardless of the cause of death; authorizing, under certain circumstances, the amount of the credit for a dwelling owned by a disabled or fallen law enforcement officer or rescue worker or the surviving spouse or cohabitant to be in the same proportion as the property tax credit initially granted for the dwelling; etc.