§ 1620.17 Jobs requiring equal responsibility in performance.
(a) In general. The equal pay standard applies to jobs the performance of which requires equal responsibility. Responsibility is concerned with the degree of accountability required in the performance of the job, with emphasis on the importance of the job obligation. Differences in the degree of responsibility required in the performance of otherwise equal jobs cover a wide variety of situations. The following illustrations in subsection (b), while by no means exhaustive, may suggest the nature or degree of differences in responsibility which will constitute unequal work.
(b) Comparing responsibility requirements of jobs. (1) There are many situations where one employee of a group performing jobs which are equal in other respects is required from time to time to assume supervisory duties for reasons such as the absence of the regular supervisor. Suppose, for instance, that it is the employer's practice to pay a higher wage rate to such a “relief” supervisor with the understanding that during the intervals in which the employee performs supervisory duties the employee is in training for a supervisory position. In such a situation, payment of the higher rate to the employee might well be based solely on the additional responsibility required to perform the job and the equal pay provisions would not require the same rates to be paid to an employee of the opposite sex in the group who does not have an equal responsibility. There would clearly be no question concerning such a wage rate differential if the employer pays the higher rate to both men and women who are called upon from time to time to assume such supervisory responsibilities.