Effect of periodic payments
15.—(1) A person who receives periodic payments from his employing authority shall not be entitled to annual compensation for any period in which the total of the periodic payments received is greater than his basic entitlement (as adjusted, where required, under regulations 13, 14, 17 and 19) otherwise payable for that period.
(2) The amount payable to a person who—
(a)receives periodic payments from his employing authority; and
(b)is entitled to annual compensation for a period,
is the amount of his basic entitlement for that period (as adjusted, where required, under regulations 13, 14, 17 and 19) less the total of the periodic payments received for that period.