C.R.S. § 12-165-109
12-165-109. Insurance required
12-165-109. Insurance required. (1) A licensee shall not engage in radon measurement or radon mitigation activities, as applicable, unless the licensee maintains professional liability insurance that:
(a) Is issued by an insurance company authorized by the division of insurance to transact insurance business in this state;
(b) Is in effect at all times during the license period;
(c) Provides for general liability coverage in an amount of at least:
(I) Two hundred fifty thousand dollars for radon measurement professionals; and
(II) Five hundred thousand dollars for radon mitigation professionals; and
(d) Lists the division of insurance as a certificate holder.