C.R.S. § 22-60.5-309.5

Any administrator who holds a valid initial or professional administrator’s license pursuant to this part 3, who has completed three or more years of successful experience working with students as a licensed or certificated professional in a public or nonpublic elementary or secondary school in this state or another state, and who, on occasion, functions as a teacher shall not be required to hold a valid initial or professional teacher license pursuant to part 2 of this article. The state board of education shall establish by rule what constitutes occasional teaching for purposes of this section.