An employee may request at any time that the employee’s agency—
(1) review the classification of the employee’s position or the grade or pay level for the employee’s position, or both; and
(2) revise or adjust that classification, grade or pay level, or both, as the case may be.
(Pub. L. 96–70, title I, § 1220, Sept. 27, 1979, 93 Stat. 466.)