Candidates must show specialized experience. Specialized experience is defined as: 1) Must have held an FAA 2152 FG-14/FV-J or above regional or headquarters positions for at least 1 year (52 weeks); or 2) Must have been facility rated or area certified for at least 1 year (52 weeks) at an ATS facility (Note: an employee who has been facility rated or area certified for at least 1 year (52 weeks) in an ATS facility that is upgraded is considered to meet the qualification requirements of the upgraded position, since he or she has been performing the higher-graded work; or 3) Must have held an MSS position for at least 1 year (52 weeks) in an ATS facility. In addition to the qualifications listed above for MSS positions, you must have held an MSS-3 or MSS-4 or an FG-2152-14/FV-J or above regional or headquarters position for at least 1 year (52 weeks) [IAW Qualification Requirements for AT-2152 Terminal and En Route Positions (Revision 1) dated 11/08/99]. QUALIFICATIONS MUST BE MET BY THE CLOSING DATE OF THIS ANNOUNCEMENT.