(1) If the department receives a request from a third party for information that a taxpayer has marked as protected pursuant to ARM 42.4.4104, it will notify the taxpayer of the request.

(2) The taxpayer shall respond to this notification within 15 working days advising the department which information should be protected and not released.

(3) The department will evaluate the response and determine the appropriateness of the taxpayer's determination that the information is protected.