3.1 Prior to giving a notice referred to in paragraph 3.2 of this Section 1:
(a) Project Co may at its option within ten (10) Business Days of receipt of a Variation Enquiry:
(i) give to the Board in good faith a preliminary non-binding indication of the estimated cost of implementing the Variation and provide such other information about the Variation as is available to Project Co and which it believes is useful to the Board; and
(ii) in the case of a Board Works Variation, such information shall include in particular Project Co's estimated effect on the date when the Actual Completion Date will occur;
(b) if Project Co provides an indication referred to in paragraph (a)(i), the Board shall within a further five (5) Business Days of its receipt confirm whether or not it wishes Project Co to proceed to respond to the Variation Enquiry in accordance with provisions of paragraph 3.2; and
(c) in the case of a Variation Enquiry for a Board Works Variation or a Board Additional Works Item where the Board has stated an intention that Project Co should obtain finance, Project Co will, if so required in the Variation Enquiry, use reasonable endeavours to obtain an initial non-binding response from the Funders as to availability of finance for the Variation in advance of performing its obligations under Section 2 of this Part 22 of the Schedule.