American Immunization Registry Association
The American Immunization Registry Association (AIRA) is a membership organization to promote the development and implementation of immunization registries as an important tool in preventing and controlling vaccine preventable diseases. The Association provides a forum through which registry programs, interested organizations and individuals and communities combine efforts and share knowledge that promotes registry activities as a resource for immunization information systems (IIS) and immunization programs.

CDC Immunization Registry Clearinghouse
The CDC Immunization Registry Clearinghouse is an excellent resource for general information on immunization registries as well as more detailed information on topics such as Privacy, Confidentiality, Security, Legislation, Technical Development and Guidance, Funding, and Registry Participation.  The site also contains contact lists of staff in the registry division of the CDC and managers/staff at registries across the country.

Survey of State Immunization Registry Legislation
This document contains a table summarizing the results from a survey of state immunization registry-related legislation conducted by the Centers for Disease Control and Prevention's National Immunization Program (CDC/NIP).   It is regularly updated by CDC.