Operation Requirement	1st Issued Date	Revised Date
House & Technical Operation Requirements	2006 Dec	2012 May

Practise Notes		1st Issued Date	Revised Date
PN 001	Safety Curtain	1996 Sep	2008 Mar
PN 002	Use of Real Flame on Stages with a Safety Curtain	1996 Dec	2006 Dec
PN 003	Fixing into Stage Surfaces	1998 Dec	2004 July
PN 004	Use of Scenery Hanging Hardware	2007 Jun
PN 005	Stability of Moving Scenic Structures	1997 Jan	2005 Aug
PN 006	Barriers and Gauarding	2002 Jun	2010 Jan