Vaccine for Children (VFC) Program & Arizona State Immunization Information System (ASIIS)

  • Vaccine for Children (VFC) is a federally funded program whereby vaccines are purchased by CDC and distributed to state health departments
  • Arizona Revised Statute ARS 36-135 mandates providers to report all immunizations administered to children under the age of 19 to ADHS
  • ASIIS is the registry dedicated at Arizona Department of Health Services (ADHS) to capture and maintain immunization data
  • At a minimum, the statute requires monthly reporting by providers.  It is highly recommended that providers report more frequently than monthly
  • AHCCCS monitors providers enrolled in ASIIS to ensure active engagement and participation in immunization reporting

How do I report immunization data in ASIIS?

  1. Enter administered vaccine data directly into ASIIS or
  2. Use the ASIIS web application

Where can I receive training for ASIIS reporting requirements?

  2. Or contact Arizona Immunization Program office at 602-364-3642 and ask to speak to your site’s assigned immunization program specialist

How can I enroll in the ASIIS Program?

  1. Providers can call the ASIIS help desk at 602-364-3899
  2. Or complete the enrollment form and instructions here:

How do I become a VFC provider?

  1. Visit

Please note that MCC AZ monitors provider compliance with immunization registry reporting requirements to ensure action is taken if reporting issues are identified.