Section 18-231-19.5-03 - Written opinions(a) The department's decision as to what constitutes a written opinion shall be final and shall not be reviewable.(b) In each written opinion, the department shall: (1) State the relevant facts (as understood by the department), state the applicable provisions of law, and apply the law to the facts;(2) Segregate information as provided in section 18-231-19.5-04;(3) Prepare a notice of intention to disclose pursuant to section 18-231-19.5-05; and(4) Separately set forth the information to be indexed under section 18-231-19.5-11.(c) Written opinions may be incorporated into tax information releases or other guidance published by the department.(d) A written opinion may be modified or revoked by the department.