(1) For purposes of individual income taxes, the department adopts by reference the rules contained in ARM Title 42, chapter 26, subchapters 1, 2, 4, 6, 7, 8, and 9 as they exist on December 27, 2002.

(2) When applying the rules referred to in (1) for individual income tax purposes, the terms "individual" or "entity" shall replace the term "corporation," and the provisions of Title 15, chapter 30, MCA, shall replace references to Title 15, chapter 31, MCA.