; or (II) the two-year retention trend for personnel performing such duty exceeds 65 percent. (B) Limitation on total number of agreements providing for Tier I payment In no event may all the agreements entered into under subsection (d) during a fiscal year by a Secretary concerned provide for a maximum amount payable as described in subparagraph (A)(i). . 617. Special aviation incentive pay and bonus authorities for enlisted members who pilot remotely piloted aircraft (a) In general Chapter 5 of title 37, United States Code, is amended by inserting after section 334 the following new section: 334a. Special aviation incentive pay and bonus authorities: enlisted members who pilot remotely piloted aircraft (a) Aviation incentive pay (1) Incentive pay authorized The Secretary concerned may pay aviation incentive pay under this section to an enlisted member in a regular or reserve component of a uniformed service who— (A) is entitled to basic pay under section 204 of this title or compensation under 206 of this title; (B) is designated as a remotely piloted aircraft pilot, or is in training leading to such a designation; (C) engages in, or is in training leading to, frequent and regular performance of operational flying duty or proficiency flying duty; (D) engages in or remains in aviation service for a specified period