; and (B) for completion of the sixth and final year of such service, the remainder of such principal and interest. (2) Maximum amount The total amount of payments under this section to any individual shall not exceed $250,000. (c) Eligible loans The loans eligible for repayment under this section are each of the following: (1) Any loan for education or training for a substance use disorder treatment job. (2) Any loan under part E of title VIII (relating to nursing student loans). (3) Any Federal Direct Stafford Loan, Federal Direct PLUS Loan, Federal Direct Unsubsidized Stafford Loan, or Federal Direct Consolidation Loan (as such terms are used in section 455 of the Higher Education Act of 1965). (4) Any Federal Perkins Loan under part E of title I of the Higher Education Act of 1965. (5) Any other Federal loan as determined appropriate by the Secretary. (d) Period of service The period of service required by an agreement under subsection (a) shall consist of up to 6 years of full-time employment, with no more than one year passing between any two years of covered employment, in a substance use disorder treatment job in the United States in— (1) a Mental Health Professional Shortage Area, as designated under section 332; or (2) a county (or a municipality, if not contained within any county) where the mean drug overdose death rate per 100,000 people over the past 3 years for which official data is available from the State, is higher than the most recent available national average overdose death rate per 100,000 people, as reported by the Centers for Disease Control and Prevention. (e) Ineligibility for double benefits No borrower may, for the same service, receive a reduction of loan obligations or a loan repayment under both— (1) this subsection