CO Code § 1-2-509 (2021)
2021 Colorado Code|Title 1 - Elections|Article 2 - Qualifications and Registration of Electors|Part 5 - Mail Registration and Registration at Voter Registration Agencies|§ 1-2-509. Reviewing Voter Registration Applications - Notification

  Upon receipt of an application, if the applicant resides in a county other than the county receiving the application, the county clerk and recorder shall within five days transmit the application to the clerk and recorder of the applicant's county; except that, if the application is received thirty days or less before an election, the application shall be transmitted as expeditiously as possible.    Upon receipt of an application, the county clerk and recorder shall verify that the application is complete and accurate. If the application is complete and accurate, the county clerk and recorder shall notify the applicant of the registration. If the application is not complete or is inaccurate, the county clerk and recorder shall notify the applicant, stating the additional information required.      Within ten business days after receipt of the application, the county clerk and recorder shall notify each applicant of the disposition of the application by nonforwardable mail and proceed in accordance with paragraph (b) of this subsection (3).      If within twenty business days after receipt of the application the notification is returned to the county clerk and recorder as undeliverable, the applicant shall not be registered. (b) (I) If within twenty business days after receipt of the application the notification is returned to the county clerk and recorder as undeliverable, the applicant shall not be registered.    If the notification is not returned within twenty business days as undeliverable, then the applicant shall be deemed registered as of the date of the application; except that, if the applicant was notified that the application was not complete, then the applicant is deemed registered as of the date of the application if the additional information is provided at any time prior to the actual voting. If such applicant does not provide the additional information necessary to make his or her application complete and accurate within twenty-four months after notification is sent pursuant to subsection (2) of this section, the applicant must reapply in order to be registered.    If the notification is returned to the county clerk and recorder as undeliverable after twenty days after receipt of the application, the county clerk and recorder shall mark the applicant's registration record “Inactive” and send a confirmation card.          This section does not apply to voter registrations received pursuant to section 1-2-213, .3, or 1-2-502.5.     History. Source: L. 94: Entire part added, p. 1766, § 21, effective January 1, 1995. L. 95: (2) and (3) amended, p. 827, § 22, effective July 1. L. 2005: (3) amended, p. 1396, § 9, effective June 6; (3) amended, p. 1431, § 9, effective June 6. L. 2012: (3) amended, (HB 12-1292), ch. 181, p. 678, § 6, effective May 17. L. 2016: (3) amended, (HB 16-1093), ch. 126, p. 360, § 4, effective April 21. L. 2019: (4) added, (SB 19-235), ch. 329, p. 3057, § 10, effective August 2.