IIS Policies: Colorado

What to know

Immunization information systems (IIS) are confidential, population-based, computerized databases that record all immunization doses administered by participating providers to persons residing within a given geopolitical area. This information details how to access immunization records for vaccine recipients who received a vaccine in Colorado.

General Information

Colorado's IIS is called CIIS, and it includes immunization records for vaccine recipients of all ages. Visit this webpage to learn more about the IIS.

The jurisdiction is authorized by law to operate CIIS. For more information, please see Colorado Revised Statutes § 25-4-2403(2).

Child Consent to Participate

For children, CIIS requires implicit consent with opt-out by law. Children are included in the IIS unless their parent(s)/guardian(s) choose to opt them out.

Resource‎

For more information, please see Colorado Revised Statutes § 25-4-2403(7).

Adult Consent to Participate

For adults, CIIS requires implicit consent with opt-out by law. Adults are included in the IIS unless they choose to opt out.

Resource‎

For more information, please see Colorado Revised Statutes § 25-4-2403(7).

Provider Reporting

Colorado does have a mandate for vaccination providers to report immunizations to CIIS. The reporting mandate:

  • Applies only to certain providers.

Resource‎

For more information, please see Colorado Revised Statutes § 25-4-2403(2.5).

Data Sharing

Colorado does have a policy that regulates sharing data from CIIS with other public health entities. The data sharing policy:

  • Requires that the data are only used for public health or other specific purposes.

Resource‎

For more information, please see Colorado Revised Statutes § 25-4-2403(3)(b).