Effective January 1, 2012, Section 22, Chapter 2011-76, L.O.F., repeals the emergency excise tax. The purpose of the proposed amendments to Rule 12C-1.003, F.A.C. (Definitions), is to update the definition of the term “written notice” to include any original or amended corporate income tax or franchise tax return, or any original or amended emergency excise tax return due prior to January 1, 2012. The purpose of the proposed amendments to Rule 12C-1.051, F.A.C. (Forms), is to adopt, by reference, changes to tax returns used by the Department in the administration of the corporate income tax, and to remove an obsolete form no longer used by the Department. The purpose of the proposed amendments to Rule 12C-1.343, F.A.C. (Interest Computations), is to: (1) update the provisions regarding interest, as provided in Section 220.807, F.S., on any underpayment or erroneous refund of the corporate income tax or franchise tax, or the emergency excise tax imposed prior to January 1, 2012, and the payment of interest on any overpayment of such taxes, removing obsolete or unnecessary provisions; and (2) provide how to obtain the interest rates.