Meaning of work or equal value

Meaning of work or equal value

For the purposes of these regulatings, the work performed by an employee:
a) is the same as the work of another employee of the same employer, if their work is identical or interchangeable.
b) is substantially the same as the work of another employee employed by that employer, if the work performed by the employees is sufficiently similar that they can resasonably be considered to be performing the same job, even if their work is not identical or interchangeable.
c) is of the same value as the work of another employee of the same employer in a differnt job, if their respective occupations are accorded the same value in accordance with regulations.