(b) Every written consent shall bear the date of signature of each member who signs the consent, and, except as provided in the operating agreement, no written consent shall be effective to take the action referred to therein unless, within sixty days of the earliest dated consent delivered in the manner required by this section to the limited liability company, written consents signed by a sufficient number of members to take the action are delivered to the office of the limited liability company, its principal place of business or a manager, employee or agent of the limited liability company having custody of the records of the limited liability company. Delivery made to such office, principal place of business or manager, employee or agent shall be by hand or by certified or registered mail, return receipt requested.

(c) Prompt notice of the taking of the action without a meeting by less than unanimous written consent shall be given to those members who have not consented in writing but who would have been entitled to vote thereon had such action been taken at a meeting. In the event that the action that is consented to is such as would have required the filing of articles or a certificate under any other section of this chapter, if such action had been voted on by members at a meeting thereof, such articles or certificate filed under such other section shall state, in lieu of any statement required by such section concerning any vote of members, that written consent has been given in accordance with this section and that written notice has been given as provided in this section.