TIME-IN-GRADE REQUIREMENT: Generally, an employee may be advanced to this position if he/she has served for at least 52 weeks in a position at or above the GS-05 level. Nonappropriated fund service, non General Schedule service, (e.g., WG) or combinations of certain other creditable service may be used to satisfy time-in-grade requirements when appropriate. Each case will be judged on its own merit.