The Hawaii Immunization Registry (HIR) is a free service of the Hawaii State Department of Health for people living in Hawaii. It is a secure, state-wide database, that stores and tracks patient immunization records and makes them available to doctors, nurses, and other healthcare workers. Doctors and nurses can store information in the registry. The information is used to make sure your immunization records are up to date. At minimum, this information will include: your name, date of birth, mailing address and immunization record