Final answer:
An OIC civilian in the grade of GS-13 can sign reports for employees on the pay grades of GS-12 and below, but not for higher pay grades like GS-14 or GS-15.
Step-by-step explanation:
Civil servants who are part of the U.S. Federal General Schedule (GS) pay scale are subject to specific rules regarding the authority for signing off on reports and documents. An OIC civilian at the GS-13 grade has specialized experience and education that qualify them for their position. In general, personnel may oversee or sign off on documentation for employees at their grade level or below.
Therefore, an OIC civilian in the grade of GS-13 can sign reports for employees on the pay grades of GS-12 and below. They are not typically authorized to sign off on reports for employees in the higher pay grades such as GS-14 or GS-15, as these grades require additional specific competencies, education, and specialized experience.