(2) No substantive change may be made in revising the rules and regulations unless the department complies with the procedures required by law for the adoption or amendment of the particular rule or regulation. However, changes that are not of a substantive nature may be made without the procedures required by law for the adoption or amendment of rules and regulations by the department.
(3) The department shall print, publish and distribute the code of regulations in a convenient form. The code of regulations as published is prima facie evidence of the current rules and regulations of the department. [1955 c.76 §1; 1971 c.734 §26]