27.1     This Agreement shall become effective on September 16, 2015, and shall remain in effect through and including September 15, 2020.

27.2     The parties agree that there will be a reopener on compensation (Section 22) for the fourth and fifth years of the Agreement and up to two additional sections identified by each party. The parties will inform each other by January 15, 2018, of the additional sections, if any, that they are interested in bargaining.