http://www.legislation.gov.uk/uksi/1996/807/article/3/madeThe A21 Trunk Road (Tonbridge Bypass To Pembury Bypass Dualling Slip Roads) Order 1996Roads and highwaysRoad buildingKing's Printer of Acts of Parliament2011-07-04HIGHWAYS, ENGLAND AND WALESThe A21 Trunk Road (Tonbridge Bypass To Pembury Bypass Dualling Slip Roads) Order 1996OrderThe A21 Trunk Road (Tonbridge Bypass to Pembury Bypass Dualling Slip Roads) Order 1996 (Revocation) Order 2014art. 2art. 13The slip roads shall become trunk roads from the date when this Order comes into force.