5 CFR §531.414

1. (a)An interim within-grade increase shall be granted to an employee who has:
   1. (1)Appealed a negative within-grade increase determination to the Merit Systems Protection Board under 5 U.S.C 5335(c); and
   2. (2)Been granted a favorable within-grade increase determination under the interim relief provisions of 5 U.S.C. 7701(b)(2).
2. (b)An interim within-grade increase granted under paragraph (a) of this section shall become effective on the date of the appellate decision ordering interim relief under 5 U.S.C. 7701(b)(2)(A).
3. (c)If the final decision of the Merit Systems Protection Board upholds the negative within-grade increase determination, an interim within-grade increase granted under this section shall be terminated on the date of the Board's final decision.
4. (d)If the final decision of the Merit Systems Protection Board overturns the negative within-grade increase determination, an interim within-grade increase granted under this section shall be made permanent and shall be granted retroactively to the first day of the first pay period beginning on or after completion of the applicable waiting period.
5. (e)An employee may not appeal the termination of an interim within-grade increase under paragraph (c) of this section.