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Immunization Information System (IIS) Functional Standards

The Immunization Information System (IIS) Functional Standards describe the operations, data quality, and technology needed by IISs to support immunization programs, vaccination providers, and other immunization stakeholders and their immunization-related goals. CDC works with these IIS stakeholders to update the Functional Standards when needed to address changes in technology, business process, and best practices in immunization services.
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