Title 14, Chapter 3, Section 823
(a) A director may waive any notice required by this chapter, the
articles of incorporation, or bylaws before or after the date and
time stated in the notice. Except as provided by subsection (b) of
this Code section, the waiver must be in writing, signed by the
director entitled to the notice, and delivered to the corporation
for inclusion in the minutes or filing with the corporate records.
(b) A director's attendance at or participation in a meeting waives
any required notice to him of the meeting unless the director at the
beginning of the meeting (or promptly upon his arrival) objects to
holding the meeting or transacting business at the meeting and does
not thereafter vote for or assent to action taken at the meeting.