C.R.S. § 6-1-1404
6-1-1404. Preemption
6-1-1404. Preemption. (1) A political subdivision shall not establish, mandate, or otherwise require online marketplaces to:
(a) Verify information from high-volume third-party sellers on a one-time or ongoing basis; or
(b) Disclose or require the disclosure of information to consumers.