Colorado Immunization Information System


Immunization records are confidential, personal medical information. The Colorado Immunization Information System (CIIS) is a lifelong immunization record tracking system under the Colorado Immunization Registry Act of 2007.

CIIS has signed agreements with all participating sites that are authorized to provide information to or access information from CIIS. CIIS and all people and entities that access immunization records are required to maintain the confidentiality of those records.

CIIS Health Care Users

Learn more about requesting a CIIS account and how to use CIIS as a health care user.

CIIS School and Child Care Users

Learn more about requesting a CIIS School and Child Care account and how to use the CIIS School platform.

CIIS Training Materials

Review CIIS training materials for health care, school, and child care users.

Information about CIIS & Immunization Records for the General Public

Learn more about how to get a copy of your immunization records, medical and non-medical vaccine exemptions, and the process to opt-out or rescind an opt-out from CIIS. 

CIIS and Electronic Health Records

CIIS has developed tools to eliminate the need to enter immunization information twice through setting up an electronic interface.

CIIS Policies and Procedures

Review information about CIIS, including security, confidentiality, and opt-out policies.

CIIS Data Requests

Request data from CIIS for research purposes that are approved by the Institutional Review Board (IRB).