Well WM2 Ver 3 didn't last long;WM2 is dead long live WM3!
The way waste is classified and assessed is changing significantly on 1st June 2015 as a result of several changes:
• amendments to the List of Waste (or European Waste Catalogue)
• a major revision of hazardous properties, and
• the adoption of the a new system of chemical classification
The Environment Agency and Natural Resources Wales have opened a consultation document on the proposed new Technical Guidance WM3 which runs until end Jan 2015. https://consult.environment-agency.gov.uk/portal/ho/waste/tech/guidance?pointId=3136200