Teddy Bear with Balloons CIRTS Logo


"What is CIRTS?" (7 min. video - English) (transcript)

"¿Que es CIRTS?" (7 min. video - Español) (transcripción)

In 1994, the legislature authorized the Connecticut Department of Public Health (CT DPH) to establish the Connecticut Immunization Registry and Tracking System (CIRTS). CIRTS is a FREE statewide, immunization registry established and maintained at the CT DPH. The purpose of the registry is to assure that children remain up-to-date with their immunizations and that their records are available when needed. After a pilot period of several years, CIRTS became a statewide registry in 1998.

On April 26, 2012, CIRTS went into production with the NEW web-based immunization registry.  CIRTS is currently working toward accepting immunization data electronically from Electronic Health Records (EHRs).  For more information visit: Health Information Technology and Exchange to download the HL7 2.5.1 Guide to prepare your EHR to report to CIRTS. 


Public Health requirements (state mandated) are independent of “Meaningful Use” (MU) requirements, although there is overlap in content and standards.  Efforts to achieve CIRTS-provider electronic data exchange will benefit providers for both public health and MU efforts.

An Eligible Provider (EP) who routinely administers immunizations to children ages 0-6 as part of the patient’s medical home and is mandated to report to the Connecticut Immunization Registry and Tracking System (CIRTS) is required to attest to the immunization registry public health reporting option in order to meet MU.

  • If you have already registered in the MUST Portal in 2015 and 2016 for attestation to Meaningful Use Stage 1, click here for the Meaningful Use State Testing (MUST) Portal to obtain your certificate.  Please email DPH.MUST@ct.gov with any questions about the MUST portal.

  • If you have not previously registered with DPH using the MUST Portal in 2015 or 2016. EPs can satisfy the Registration option for Active Engagement for Program Year 2017 for immunization reporting by completion and submission of the CT DPH Immunization Registration Form.  Please retain any confirmation material from DPH to validate the measure for Modified Stage 2.

Please note that Stage 2 immunization reporting, per state regulations, will only be for primary health care providers administering immunizations in an outpatient setting for children from birth to first grade once CIRTS is ready to accept electronic reporting.


The registry includes such information as is necessary to accurately identify a child and to assess current immunization status. CIRTS can:

  •    Keep permanent records of children’s immunizations (shots)
  •    Let doctors keep track of their patients' immunization histories in a computerized database
  •    Give parents their children’s immunization histories for daycare, school, and camp
  •    Provide parents with immunization information in the future even if they move away from Connecticut or their baby’s doctor retires

All personal information including immunization status and dates of immunization of individuals shall be confidential as required by Connecticut law. Only the parent(s)/child’s legal guardian, child’s doctor, or health care workers who can assist with missed opportunities or missed immunizations have access to CIRTS.

Upon receiving a request from CIRTS, all healthcare providers administering immunizations to children in CT shall report those immunizations to CIRTS.

Release of Official Immunization Records by the Immunization Registry to Health Care Providers This provides guidance on how to obtain immunization information from the registry.

Frequently Asked Questions (FAQ) regarding CIRTS

State of CT Regulations regarding CIRTS (pdf)

Birthing Hospitals Fillable Order Form for CIRTS Forms and Brochure  1/18 (pdf)

American Academy of Pediatrics Immunization Registry page

American Immunization Registry Association

National Immunization Program Registry home page

Registry Staff-List of State contacts by state-home page (outside link)

click here for an English CIRTS enrollment form. 

click here for a Spanish CIRTS enrollment form

click here for CIRTS enrollment forms in other languages

Immunization Action Plan

IAP Coordinators, Outreach Staff Contacts and IAP Area Map



State of CT, Department of Public Health

Immunization Program

410 Capitol Avenue, MS #11 MUN

Hartford, CT 06134



Phone: (860)509-7929

Fax: (860)509-8370



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