http://www.legislation.gov.uk/uksi/1999/230/signature/madeThe Fishguard to Bangor Trunk Road (A487) (Llanwnda to South of Llanllyfni Improvement) Order 1999Roads and highwaysRoad buildingCouncil policies and plansKing's Printer of Acts of Parliament2011-07-04HIGHWAYS, ENGLAND AND WALESSigned by authority of the Secretary of StateD. M. TimlinHead of Roads Administration Division, Welsh OfficeDated the 29th January 1999