Accountable Federal Employees Act or the Accountable Feds Act This bill establishes and modifies requirements relating to the administration of the federal workforce, including (1) creating a new Schedule F in the excepted service for certain positions that are not normally subject to change as a result of a presidential transition; (2) specifying certain standards and principles relating to removals, grievance procedures, and adverse personnel actions; (3) placing certain restrictions on the use of union time; and (4) creating a workgroup to manage the efficiency of labor-management relations.