Paragraph 33 I1

Network Rail must, on receipt of a request from the undertaker, at a frequency to be agreed between the undertaker and Network Rail, provide the undertaker free of charge with written estimates of the costs, charges, expenses, future cost forecasts and other liabilities for which the undertaker is or will become liable under this Part of this Schedule (including the amount of the relevant costs mentioned in paragraph 32) and with such information as may reasonably enable the undertaker to assess the reasonableness of any such estimate or claim made or to be made under this Part of this Schedule (including any claim relating to those relevant costs).