If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email email@example.com.
Please tell us what format you need. It will help us if you say what assistive technology you use.
The Door Supervisors Union was entered in the list of trade unions on 20 August 2009. Following a review of the status of the union, the DSU was removed from the list of trade unions on 28 March 2013. The Certification Officer determined that the DSU no longer met the statutory definition of a Trade Union.