<ul><li><a href=http://www.legislation.gov.uk/ukpga/1986/31 target=_blank>Airport Act 1986(last updated in March 2018)</a></li><li><a href=http://www.legislation.gov.uk/ukpga/1998/41/contents target=_blank>Competition Act 1998(last updated in June 2017)</a></li></ul>