tag:www.gov.uk,2005:/search/transparency-and-freedom-of-information-releasesTransparency and freedom of information releases2014-10-14T00:00:00+01:00HM Governmenttag:www.gov.uk,2005:/government/publications/official-list-of-trade-unions2014-10-14T00:00:00+01:00Official list of trade unionsThe Certification Officer's list of current and former trade unions.