Altering eligibility for a certain property tax credit against the county or municipal corporation property tax on the dwelling house of certain disabled veterans to include individuals who have been declared by the U.S. Department of Veterans Affairs to have a nonpermanent service-connected disability of 100% that results from blindness or any other disabling cause; authorizing a county or municipal corporation, notwithstanding certain provisions of the Act, to enact a law limiting eligibility for the tax credit; etc.