Before starting new projects above £300k in value construction clients need to ensure that a site waste management plan (SWMP) has been prepared identifying what waste will be generated from the works and how this will be dealt with. The Regulations require the SWMP to be in place before construction works can begin production. During construction, the principal contractor will manage and update the plan.The principal contractor must ensure, so far as is reasonably practicable, that waste produced during construction is re-used, recycled or recovered. Link to the regulations in full:http://www.opsi.gov.uk/si/si2008/uksi_20080314_en_1