(a)

1. (1) The Board of Trustees of the Arkansas Teacher Retirement System and the Executive Director of the Arkansas Teacher Retirement System may extend any deadline applicable to a member's appeal upon a showing of good cause unless a hearing officer has been assigned.
2. (2) Only the board may extend a deadline after the deadline has passed.
3. (3) If a hearing officer has been assigned, until the completion of the hearing, only the hearing office may extend a deadline applicable to a member’s appeal upon a showing of good cause.

(b) When compliance with this subpart concerning the staff determination and appeal process is based on delivery having occurred, delivery shall be considered to have occurred on the earlier of either the:

1. (1) Date of the postmark, if posted with the United States Postal Service; or

2. (2) Date of actual delivery by one (1) of the following methods:

   1. (A) Hand delivery;
   2. (B) Electronic transmission; or
   3. (C) Delivery service other than United States Postal Service.