Altering a certain limit on the unified credit used for determining the estate tax for decedents dying on or after a certain date; altering a certain limitation on the amount of the estate tax for decedents dying on or after a certain date; requiring that certain sales of tangible personal property be included in the numerator of the sales factor used for apportioning a corporation's income to the State under certain circumstances; altering the State income tax rate on Maryland taxable income of certain individuals; etc.