Ind. Code § 23-1-34-2
(a) Except to the extent that the articles of incorporation or bylaws require that action by the board of directors be taken at a meeting, action required or permitted by this article to be taken at a board of directors' meeting may be taken without a meeting if the action is taken by all members of the board. The action must be:
(b) Action taken under this section is effective when the last director signs the consent, unless:
(2) no effective date contemplated by subdivision (1) is designated and the action taken under this section is taken electronically as contemplated by IC 26-2-8 . If action is taken as contemplated by IC 26-2-8 , the effective date is determined in accordance with IC 26-2-8 .
A director's consent may be withdrawn by a revocation signed by the director and delivered to the corporation before the delivery to the corporation of unrevoked written consents signed by all the directors.
As added by P.L.149-1986, SEC.18. Amended by P.L.133-2009, SEC.26.