(a) Reference in other laws to the Puerto Rico Internal Revenue Code of 1994. — Any reference to any other law of Puerto Rico, or to any executive order, or to any provision of Act No, 120 of October 31, 1994, as amended, known as the 'Puerto Rico Internal Revenue Code of 1994', shall be understood, unless otherwise expressly incompatible with the intent of this Code, to refer also to the corresponding section of this Code.(b) Income and expenditure items not to be duplicated. — Unless expressly provided otherwise, the same item, whether an income, a deduction, or a credit item, shall not be taken into account when computing the taxes imposed by this Code or taxes imposed by the Puerto Rico Internal Revenue Code of 1994. History —Jan. 31, 2011, No. 1, § 6093.04, retroactive to Jan. 1, 2011.