The Kentucky Health Information Exchange (KHIE) is the public health authority for Meaningful Use in the state of Kentucky, as deferred from the KY Department for Public Health. Providers are required to connect with KHIE in some capacity, in order to attest to the EHR Incentive Program. Serving in this function has allowed KHIE to broaden its interoperability efforts and capture a range of data used for public health reporting. Between 2011 and 2012, KHIE implemented support for public health data submissions for: immunization data for the KY immunization registry