; and (ii) whose contract is accepted. (B) Requirement The summary described in subparagraph (A) shall be written in a manner calculated to be understood by an average individual applying to participate in the loan repayment program, as determined by the Secretary. (4) Contracts (A) In general An individual shall become a participant in the loan repayment program under this subsection only on the Secretary and the individual entering into a written contract in which— (i) the Secretary agrees to repay loans on behalf of the individual in accordance with paragraph (5); and (ii) the individual agrees— (I) to accept loan payments on behalf of the individual; (II) if applicable, to maintain enrollment and acceptable academic standing in a training program or course of study or program described in clause (ii) or (iii) of paragraph (2)(A), respectively; and (III) to serve for a period equal to 2 years, or any longer period as the individual may agree, as a botanical scientist employed by the Department. (B) Other terms and conditions A contract under this paragraph shall include any other appropriate terms and conditions to clarify the rights, obligations, and liabilities of the parties. (5) Repayment (A) In general A loan repayment under this subsection shall consist of repayment by the Secretary on behalf of the individual of government and commercial loans received by the individual regarding the education described in paragraph (2)(A) of the individual for— (i) tuition; (ii) other reasonable educational expenses