The Department issued a Guidance Note on Empty Dwelling Management Orders in July 2006 which can be downloaded from the Communities website:
An interim Empty Dwelling Management Order can be issued only by the Residential Property Tribunal Service if the dwelling has been wholly unoccupied (i.e. no part is occupied whether lawfully or unlawfully) for at least six months.
The issue of squatters is managed through separate provisions—other powers exist to evict squatters. The landlord must obtain an eviction order from a county court. The EDMO provisions can then be followed if required.