This department provides CDIB, citizenship and information to Chickasaws who are direct descendants of enrollees on the Dawes Commission Rolls. An applicant must be able to trace his/her heritage through bloodlines to an original enrollee listed on the Dawes Commission Rolls in order to obtain a CDIB. Required forms are available at the above address.

• State-issued birth certificate with state registrar signature and state file number
• Death certificates
• Copies of court orders
• Recent color photos for persons 12 years of age or older
  

The Certificate of Degree of Indian Blood (CDIB) application is for applicants who want to prove their Chickasaw Indian blood. The application is a family tree chart that must be submitted with birth certificates or death certificates, and supporting documents if needed.

Once the application is received in the CDIB office, the research begins by looking up the enrolled ancestors on the Dawes Commission Rolls, which are the base rolls for the Five Civilized Tribes.

The CDIB does not establish citizenship with the Chickasaw Nation. Once applicants receive the CDIB, they are eligible for citizenship in the Chickasaw Nation.