http://www.legislation.gov.uk/uksi/1989/1438/signature/madeThe Air Navigation (Restriction of Flying) (Gruinard Island) (Revocation) Regulations 1989Local GovernmentKing's Printer of Acts of Parliament2011-07-04CIVIL AVIATIONThese Regulations revoke the restrictions on flying in specified airspace around Gruinard Island, Ross and Cromarty.Signed by authority of the Secretary of StateA. J. GoldmanAn Under Secretary in theDepartment of Transport31st July 1989