(1) Unless written approval is granted by the Commissioner of Education, it is a breach of the ethical standards of this chapter for administrators to be or become the employee, agent, or independent contractor of any party contracting with the public educational entity the administrators serve.
(2) The commissioner's approval letter shall be filed with and maintained by the public educational entity employing the administrator.
(3) Unless written approval is granted by the commissioner, it is a breach of the ethical standards of this chapter for administrators to engage in selling or attempting to sell commodities or services to the public educational entity they served or were employed by for one (1) year following the date employment or service ceased.