27.1 The failure to exercise or delay in exercising a right or remedy provided by this Agreement or by law does not constitute or shall not be construed as a waiver of the right or remedy or a waiver of other rights or remedies nor effect the validity of this Agreement.
27.2 A waiver of a breach of any of the terms of this Agreement or of a default under this Agreement does not constitute a waiver of any other breach or default and shall not affect the other terms of this Agreement.
27.3 A waiver of a breach of any of the terms of this Agreement or of a default under this Agreement will not prevent an Authority from subsequently requiring compliance with the waived obligation.