Article 33: Duration And Continuance Of The Agreement 33.1 Except as specifically otherwise provided herein, the Collective Agreement ratified by the parties on April 30th, 2009 shall be binding and remain in effect from May 1st, 2009 until and including the 30th day of April 2010. 33.2 This Collective Agreement, however, shall continue in force, including during any period of negotiation, until a new Collective Agreement is ratified by both parties, or until a strike or lock-out is declared.