20 C.F.R. § 1002.193 : Employees' Benefits — OFFICE OF THE ASSISTANT SECRETARY FOR VETERANS' EMPLOYMENT AND TRAINING SERVICE, DEPARTMENT OF LABOR — REGULATIONS UNDER THE UNIFORMED SERVICES EMPLOYMENT AND REEMPLOYMENT RIGHTS ACT OF 1994 — REEMPLOYMENT RIGHTS AND BENEFITS —REEMPLOYMENT POSITION — Does the reemployment position include elements such as seniority, status, and rate of pay?

(a) Yes. The reemployment position includes the seniority, status, and rate of pay that an employee would ordinarily have attained in that position given his or her job history, including prospects for future earnings and advancement. The employer must determine the seniority rights, status, and rate of pay as though the employee had been continuously employed during the period of service. The seniority rights, status, and pay of an employment position include those established (or changed) by a collective bargaining agreement, employer policy, or employment practice. The sources of seniority rights, status, and pay include agreements, policies, and practices in effect at the beginning of the employee's service, and any changes that may have occurred during the period of service. In particular, the employee's status in the reemployment position could include opportunities for advancement, general working conditions, job location, shift assignment, rank, responsibility, and geographical location.
(b) If an opportunity for promotion, or eligibility for promotion, that the employee missed during service is based on a skills test or examination, then the employer should give him or her a reasonable amount of time to adjust to the employment position and then give a skills test or examination. No fixed amount of time for permitting adjustment to reemployment will be deemed reasonable in all cases. However, in determining a reasonable amount of time to permit an employee to adjust to reemployment before scheduling a makeup test or examination, an employer may take into account a variety of factors, including but not limited to the length of time the returning employee was absent from work, the level of difficulty of the test itself, the typical time necessary to prepare or study for the test, the duties and responsibilities of the reemployment position and the promotional position, and the nature and responsibilities of the service member while serving in the uniformed service. If the employee is successful on the makeup exam and, based on the results of that exam, there is a reasonable certainty that he or she would have been promoted, or made eligible for promotion, during the time that the employee served in the uniformed service, then the promotion or eligibility for promotion must be made effective as of the date it would have occurred had employment not been interrupted by uniformed service.

20 C.F.R. § 1002.193