C.R.S. § 12-255-109

(1) All nurse applicants, unless eligible for licensure by endorsement, shall be required to pass a written examination approved or prepared by the board, relating to the knowledge, skills, and judgments as incorporated in their respective approved education programs. (2) In accordance with the requirements of this part 1, the board shall hold at least two examinations annually for practical nurses and for professional nurses at such places and at such times as the board shall determine.