This is from The Nat'l Agreement regarding formula office ;
d. The following actions will occur in the order pre-
sented until the required number of K routes with
relief days other than Saturday is reached:
(1) Any regular rural carrier assigned to a K route
with a Saturday relief day may elect to
permanently change the relief day to another
day (including Friday/Saturday rotating),
provided the new relief day will assist in
reaching the required number of routes with
relief days other than Saturday. Any rural
carrier that selects Tuesday, Wednesday, or
Thursday as the relief day will be given the
incentive of allowing the route’s evaluation to
increase to 53:00 to 55:00 standard hours
through normal growth and maintain such
evaluation for the duration the rural carrier is
assigned that route and that relief day. The
Employer will adjust these routes down to
53:00 to 55:00 standard hours when
adjustments are necessary. However,
adjustments may be made below 53:00 to
55:00 standard hours consistent with
contractual provisions and applicable
regulations. Bids for posted routes with
Tuesday, Wednesday, or Thursday relief days
and residual vacancies with Tuesday,
Wednesday, or Thursday relief days awarded
to part-time flexible rural carriers, substitutes,
or rural carrier associates, will not result in the
above incentive
You have been made aware of a pending adjustment. File on this issue ASAP. What they want to do is cut your pay , as well as others in your office, and freeze that pay for AT LEAST one year while you and the others involved are being underpaid for work performed.