http://www.legislation.gov.uk/uksi/1994/2660/signature/madeThe Cardiff—Glan Conwy Trunk Road (A470) (Nant Crew Improvement) Order 1994Roads and highwaysRoad buildingKing's Printer of Acts of Parliament2011-07-04HIGHWAYS, ENGLAND AND WALESSigned by authority of the Secretary of StateP. R. MarsdenA Grade 6 Officer in the Welsh OfficeDated the 10th October 1994