(1) The commissioner shall promulgate and publish rules necessary to carry out the provisions of this chapter in conformance with the Montana Administrative Procedure Act and, in particular, shall provide rules necessary to allocate salary, expenses, and any other payments between lobbying activities and other activities not connected with lobbying for any person whose activities are not solely limited to lobbying.
(2) Such rules shall be designed to effect and promote the purposes of this chapter, express or implied. Such rules shall be as simple and easily complied with as possible.