Member
(20) the term “Member” has the same meaning as provided in section 2106, except that such term does not include an individual who irrevocably elects, by written notice to the official by whom such individual is paid, not to participate in the Federal Employees’ Retirement System, and who (in the case of an individual who is a Member of the House of Representatives, including a Delegate or Resident Commissioner to the Congress) serves as a Member prior to the date of the enactment of the Legislative Branch Appropriations Act, 2004;