(a) A request for an insurance deduction must:
(1) be submitted to the county officer authorized by the commissioners court to administer payroll deductions; and
(2) state the amount to be deducted and the entity to which the amount is to be transferred.
(b) A request remains in effect until the county officer authorized to administer the insurance deductions receives a notice of change.

(c) An insurance deduction may not exceed the amount stated in the request plus the amount of any change in applicable insurance premiums imposed after the date the request for deduction is submitted.
(d) If the amount of an applicable insurance premium is changed after the date the request for deduction is submitted, the county officer authorized to administer insurance deductions shall provide written notice of the change to each affected employee. The notice must be provided before the change takes effect.