(1) Except as provided in this Act, documents, etc. shall be served either in person or by mail to the principal, his or her family members, referee, or head of the organization to which he or she belongs, in that order.
(2) If the head of a Regional Immigration Service deems it impossible to serve documents, etc. pursuant to paragraph (1), he or she shall keep the documents, etc. to be served, and serve such documents, etc. by public notice posting the grounds therefor on the bulletin board in the office building. <Amended on Mar. 18, 2014>
(3) Service by public notice under paragraph (2) shall take effect at the expiration of 14 days after the public notice is posted.[This Article Wholly Amended on May 14, 2010]