C.R.S. § 12-10-221
12-10-221. Broker remuneration
12-10-221. Broker remuneration. It is unlawful for a real estate broker registered in the commission office as in the employ of another broker to accept a commission or valuable consideration for the performance of any of the acts specified in this part 2 from any person except the broker's employer, who shall be a licensed real estate broker.