Required as applicable for the purposes of specific eligibility and appointment claims and position requirements: Indian Preference Applicants: If claiming Indian preference, applicants must provide a completed copy of the Form BIA-4432 Verification of Indian Preference for Employment in the BIA and IHS Only. Career Transition Assistance Program (CTAP) / Interagency Career Transition Assistance Program (ICTAP): If you are claiming CTAP/ICTAP, follow the instructions below: http://www.opm.gov/policy-data-oversight/workforce-restructuring/employee-guide-to-career-transition/ctap_guideline.pdf.