The Officer Grade Limitations Model was developed as part of a series of models to be used by the Air Force to develop long-term planning policies that guide the careers of its officers and to promote fair personnel practices and a stable officer structure. Fed into the model are the total number of officers permitted at each grade (as might be determined, for example, by Congress) plus the expected or desired ratios of officers (at each grade and rating) that will be given regular commissions, ratings, or promotions, or that will be retired. In the past, models have usually computed grade limitations based on given personnel policies. The distinguishing feature of this model is that grade limitations are given and implications of them computed. The model prints out in detail or in summary the accessions, and personnel policies necessary in order to meet the input specifications.