prescribed by the Secretary concerned, by an eligible enlisted member remotely piloted aircraft pilot. (2) Operational flying duty The term operational flying duty means flying performed under competent orders by enlisted members of the regular or reserve components while serving in assignments in which basic flying skills are normally maintained in the performance of assigned duties as determined by the Secretary concerned, and flying duty performed by members in training that leads to designation as a remotely piloted aircraft pilot by the Secretary concerned. (3) Proficiency flying duty The term proficiency flying duty means flying performed under competent orders by enlisted members of the regular or reserve components while serving in assignments in which such skills would normally not be maintained in the performance of assigned duties. (i) Termination of Authority No agreement may be entered into under this section after December 31, 2018. . (b) Clerical amendment The table of sections at the beginning of chapter 5 of such title is amended by inserting after the item relating to section 334 the following new item: 334a. Special aviation incentive pay and bonus authorities: enlisted members who pilot remotely piloted aircraft. . 618. Technical and conforming amendments relating to 2008 consolidation of special pay authorities (a) Repayment provisions (1) Title 10 The following provisions of title 10, United States Code, are each amended by inserting or 373 before of title 37 : (A) Section 510(i). (B) Subsections (a)(3) and (c) of section 2005. (C) Paragraphs (1) and (2) of section 2007(e). (D) Section 2105. (E) Section 2123(e)(1)(C). (F) Section 2128(c). (G) Section 2130a(d). (H) Section 2171(g). (I) Section 2173(g)(2). (J) Paragraphs (1) and (2) of section 2200a(e). (K) Section 4348(f). (L) Section 6959(f). (M) Section 9348(f). (N) Subsections (a)(2) and (b) of section 16135. (O) Section 16203(a)(1)(B). (P) Section 16301(h). (Q) Section 16303(d). (R) Paragraphs (1) and (2) of section 16401(f). (2) Title