; and (ii) with respect to chapter 84 of such title, has the meaning given such term under section 8401 of such title. (2) Impacted Federal employees described An impacted Federal employee described in this paragraph is an impacted Federal employee— (A) (i) that makes the selection described in section 2(a)(1); and (ii) is either— (I) deemed to have additional service under subsection (a)(1); or (II) makes the election described in subsection (a)(2)(A); (B) (i) that makes the selection described in section 2(a)(2); and (ii) is either— (I) deemed to have additional service under subsection (b)(1); or (II) employed in a position subjecting such impacted Federal employee to either chapter 83 or 84 of title 5, United States Code, and makes the election described in paragraph (b)(2)(B)(i); (C) with respect to whose service another individual— (i) is entitled to an annuity under chapter 83 or 84 of title 5, United States Code; or (ii) received or is entitled to receive a lump-sum payment under either such chapter. (d) Definitions In this section— (1) Fund The term Fund means the Civil Service Retirement and Disability Fund under section 8348 of title 5, United States Code. (2) Lump-sum credit; service The terms lump-sum credit and service — (A) with respect to chapter 83 of title 5, United States Code, have the meanings given such terms under section 8331 of such title