; and (B) any position within the Department of Homeland Security, not described in subparagraph (A), the duties and responsibilities of which involve providing transportation security in furtherance of the purposes of the Aviation and Transportation Security Act ( Public Law 107–71 ), as determined by the Secretary; (2) the term covered employee means an employee who holds a covered position; (3) the term employee has the meaning given such term by section 2105 of title 5, United States Code; (4) the term Secretary means the Secretary of Homeland Security; (5) the term Administrator means the official within the Department of Homeland Security who is responsible for overseeing and implementing transportation security pursuant to the Aviation and Transportation Security Act, whether designated as the Assistant Secretary of Homeland Security (Transportation Security Administration), the Administrator of the Transportation Security Administration, the Undersecretary of Transportation for Security, or otherwise; (6) the term TSA personnel management system means any personnel management system, as established or modified under— (A) section 111(d) of the Aviation and Transportation Security Act; or (B) section 114(n) of title 49, United States Code; (7) the term agency means an Executive agency, as defined by section 105 of title 5, United States Code; and (8) the term conversion date means the date as of which paragraphs (1) through (3) of section 4(b) take effect. 4. Conversion of screening personnel (a) Termination of certain personnel authorities Effective as of the date of the enactment of this Act— (1) each provision of law cited in section 2(6) is repealed, and any authority to establish or modify a TSA personnel management system under either such provision of law shall terminate; (2) all authority to establish or adjust a human resources management system under chapter 97 of title 5, United States Code, shall terminate with respect to covered employees and covered positions