; and (3) contains, or is accompanied by, a plain-language disclosure form developed by the Secretary that clearly describes the nature of the Law Enforcement Education Grant award, the service obligation, and the loan repayment requirements that are the consequence of the failure to complete the service obligation. (b) Repayment for failure To complete service (1) In general In the event that law enforcement candidate fails or refuses to comply with the service obligation in the agreement under subsection (a) , the sum of the amounts of any Law Enforcement Education Grants received by such candidate shall, upon a determination of such a failure or refusal in such service obligation, be treated as a Federal Direct Unsubsidized Stafford Loan under part D of this title, and shall be subject to repayment, together with interest thereon accruing from the date the grant is converted to such a Loan, in accordance with terms and conditions specified by the Secretary in regulations under this subpart. (2) Extenuating circumstances The Secretary shall establish, by regulation, categories of extenuating circumstances under which a law enforcement candidate who is unable to fulfill all or part of the candidate’s service obligation may be excused from fulfilling that portion of the service obligation. Such categories shall ensure that a law enforcement candidate who is hired and serves as a full-time law enforcement officer but is unable to fulfill part of the candidate’s service obligation due to medical discharge by a law enforcement agency or department because of a medical issue resulting from service as a law enforcement officer shall be excused from fulfilling the remaining portion of the service obligation. 423. Definitions For the purposes of this subpart: (1) Eligible institution The term eligible institution means an institution of higher education, as defined in section 102, that— (A) provides an associate or baccalaureate degree in a field related to law enforcement or criminal justice