Effective tax year 2003, military income earned by a member of the National Guard or any reserve component of the armed services while stationed in a combat zone or stationed in defense of the borders of the United States pursuant to military orders is not subject to Georgia income tax. The exclusion from income is only with respect to military income earned during the period covered by such military orders. A copy of the Federal return must be enclosed with the Georgia return to claim this exclusion. The exclusion is limited to the amount included in Federal Adjusted Gross Income.