A consultation on the 11 notes for minerals processes, including bulk cement, quarries and roadstone coating, was held in September 2001 (ENDS Report 320, pp 38-39 ). DEFRA's failure to finalise the guidance since then has led it to issue the notes for further consultation, ending on 31 December.
Little appears to have changed in the current drafts, which retain the proposed tougher limits on particulate emissions. Roadstone coating processes, for instance, must cut dust emissions from 100 to 25mg/m3, although the guidance gives existing processes 10 years to achieve this. New processes must comply immediately. The move is expected to cost the sector up to £45 million.