C.R.S. § 23-64-126

(1) No note, other instrument of indebtedness, or contract relating to payment for educational services shall be enforceable in the courts of this state by any school located within this state unless the school, at the time of execution of the note, other instrument of indebtedness, or contract, holds a valid certificate of approval nor by any school having an agent in this state unless the agent, who enrolled persons to whom educational services were to be rendered or to whom educational credentials were to be granted, held a valid agent’s permit at the time of the execution of the note, other instrument of indebtedness, or contract. (2) The enforceability of notes, contracts, and other evidence of indebtedness relating to payment for educational services shall be in compliance with applicable state and federal laws and regulations, as amended.