http://www.legislation.gov.uk/uksi/2012/3053/madeThe River Tyne (Tunnels) (Revision of Tolls) Order 2012King's Printer of Acts of Parliament2012-12-11 The River Tyne (Tunnels) (Revision of Tolls) Order 2012OrderThe River Tyne (Tunnels) (Revision of Tolls and Traffic Classification) Order 2013art. 3art. 1