4.2. Breach. Either PARTY may terminate this agreement if the other PARTY is in material breach of any representation, warranty, obligation, or agreement contained in this agreement, after providing written notice to the other PARTY of such intent and reason for termination. This termination will be: (a) effective immediately upon notice with respect to breaches that are not curable; and (b) effective within 30 calendar days after the date of the notice for curable breaches, unless before the end of that period the other PARTY cured the breach identified in the notice. If the breach is cured in the specified period and the breaching PARTY receives written acknowledgement from the non-breaching PARTY that the breach has been cured, then the notice of termination will be void and of no effect.