Refer to BIA-4432 link: Verification of Indian Preference for Employment in the BIA and IHS When an Indian Preference candidate possesses Veterans preference the rules regarding Veterans preference apply under ESEP and the applicant must provide documentation in order to receive preference. A 4-year course of study leading to a bachelors degree, that included or was supplemented by at least 24 semester hours in any combination of the following fields: accounting, business, finance, law, contracts, purchasing, economics, industrial management, marketing, quantitative methods, or organization and management.