What must happen for an employee to maintain seniority when reassigned?

To maintain seniority when reassigned, it's essential to recognize how seniority is determined in relation to an employee’s previous experience and position. The statement that an employee should only be credited with seniority from their former class highlights the importance of retaining the seniority accrued in their original role when transitioning to a new department. This perspective allows employees to leverage their prior experience and tenure, ensuring that their contributions in their former class are acknowledged even as they take on new responsibilities.

The other choices suggest prerequisites that either involve additional time in a new role, achievements such as promotions, or meeting requirements, none of which fundamentally address the core aspect of how seniority is retained during a reassignment. By focusing solely on the seniority from the former class, the chosen answer accurately reflects policies that prioritize continuity of experience and recognition of the previous role’s tenure, promoting a fair and consistent approach across departmental changes.