La. Public Health and Safety § 40:31.11
The office of public health of the Louisiana Department of Health and parish health units are hereby authorized to establish immunization registries for the purpose of improving the immunization rates of the state's children and young adults in order to prevent the spread of diseases at which the immunizations are directed. Registries established in accordance with this Part shall provide for a method of informing the parent, guardian, or registrant when the registrant is due or is late for a recommended immunization and shall serve as a means for persons and institutions that either provide immunization services or are required to ensure that persons are immunized to receive prompt and accurate immunization information. Such persons and institutions shall include but not be limited to public health units, healthcare providers, schools, and early learning centers.
La. Public Health and Safety § 40:31.11