Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 156D, § 8.23

(a) A director may waive any notice required by this chapter, the articles of organization or the bylaws before or after the date and time of the meeting. Except as provided by subsection (b), the waiver shall be in writing, signed by the director entitled to the notice, or in the form of an electronic transmission by the director to the corporation, and filed with the minutes or 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.