This excerpt taken from the MGPI 10-Q filed Feb 9, 2007.
J. Modification of Stipulation
The parties may, by mutual written consent, agree to extend any compliance dates or modify the terms of this Stipulation. A request for any modification shall be made in writing and submitted to the contact persons identified in Section VIII.I. Any such request shall be made by separate document, and shall not be submitted within any other report or submittal required by this Stipulation. Any such agreed modification shall be in writing, signed by authorized representatives of each party, and then accompany a joint motion to the Illinois Pollution Control Board seeking a modification of the prior order approving and accepting the Stipulation to approve and accept the Stipulation as amended.