Paragraph 7 I1

Subject to sub-paragraph (2), the amount of tolls to be charged in respect of any vehicle or class of vehicles following the concession toll date may if the undertaker so determines be revised to an amount arrived at by increasing the amount chargeable in the case of that vehicle or class of vehicles at that time by the same percentage as the percentage increase referred to in paragraph 8.

Where a toll level is to be revised in accordance with sub-paragraph (1) the amount which shall be revised is the toll level which would have been chargeable following the last revision of such toll level but for the operation of paragraph 18.

Following the revision of the toll level pursuant to sub-paragraph (1) the amount shall be further revised in accordance with paragraph 18.