To qualify for this position you: 1. Must have held an FAA 2152 FG-14/FV-J or above regional or headquarters position for at least 1 year (52 weeks); OR 2. Must have been facility rated or area certified for at least 1 year (52 weeks) in 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/she has been performing the higher-graded work); OR 3. Must have held a MSS position or above for at least 1 year (52 weeks) in an ATS facility. 4. In addition to the qualifications listed above for this MSS-4 position, you must have held the MSS-3 or above; or an FG-2152-14 or above Regional or Headquarters position for 1 year (52 weeks) [IAW Qualification Requirements for AT-2152 Terminal and En Route Positions (Revision 1) dated 11/08/99].