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CIIS Registry

CIIS Registry

The Colorado Immunization Information System (CIIS), also known as Colorado’s immunization registry, is a confidential, population-based, computerized system that collects and consolidates vaccination data for Coloradans of all ages from a variety of sources. CIIS is a program within the Colorado Immunization Section at the Colorado Department of Public

Health and Environment (CDPHE). The CIIS registry helps healthcare providers, schools, childcare centers, universities, and individuals keep track of the shots that they and/or their children have received.

You have the option to exclude your/your child’s shot information from CIIS at any time.

Frequently Asked Questions Regarding the CIIS Registry: