How does 17 Jan 2017 DoD Policy and Procedures for Reductions in Force in the Civilian Workforce adversely impact SSC graduates who do not get a rating of record the year they begin school?

No impact. (1) Rating of Record. An employee’s rating of record is the average of the ratings of record drawn from the two most recent performance appraisals received by the employee within the four-year period preceding the “cut-off date” established for the RIF, except when the rating of record in the employee’s most recent performance appraisal is “unacceptable.” When the most recent rating of record is “unacceptable,” only that rating of record will be considered for purposes of RIF.