; and (2) cost estimates associated with border wall system construction. 5. Authorization to provide bonuses to U.S. Customs and Border Protection agents (a) Recruitment bonuses (1) In general Subject to the approval of the Secretary of Homeland Security, the Commissioner of U.S. Customs and Border Protection may pay a recruitment bonus, not to exceed $15,000, to each newly hired U.S. Customs and Border Protection agent after— (A) the agent completes initial basic training; and (B) the execution of a written agreement described in paragraph (2). (2) Written agreement A written agreement described in this paragraph is a legally binding agreement between a newly hired agent and U.S. Customs and Border Protection that— (A) specifies the amount of the bonus payment to be paid to such agent, including the timing of such payment; (B) the length of the period of service required to be completed before such agent is entitled to retain such payment