Colorado Revised Statutes Title 1. Elections § 1-5-206.7. Failure to receive mailed notice

Any election for which a notice was mailed shall not be invalidated on the grounds that an eligible elector did not receive the ballot issue notice, mailed information, or mailed notification of the election required by this code or the state constitution if the designated election official or coordinated election official acted in good faith in making the mailing. Good faith is presumed if the designated election official or coordinated election official mailed the ballot issue notice, information, or notification to the addresses appearing on a registration list for the political subdivision as provided by the county clerk and recorder, and, where applicable, the list of property owners provided by the county assessor.