1. The director of revenue shall administer and enforce the tax imposed by sections 143.011 to 143.996 and he is authorized to make such rules and regulations and to require such facts and information to be reported, as he may deem necessary to enforce the provisions of sections 143.011 to 143.996. The director of revenue may for enforcement and administrative purposes establish temporary or permanent branch offices.

2. The rules and regulations prescribed by the director of revenue shall follow as nearly as practicable the rules and regulations of the Secretary of the Treasury of the United States or his delegate regarding income taxation. Such construction of sections 143.011 to 143.996 will further their purposes to simplify the preparation of income tax returns, aid in their interpretation through use of federal precedents, and improve their enforcement.