Green waste composting is, nevertheless, being encouraged in rural regions, and tests are being carried out on the Oum Azza landfill. There are also no precise data (only estimations) on the quantities collected and recycled by unofficial waste pickers. Collected waste is sold to wholesalers and is then generally sent on to Casablanca to be transformed into energy or reusable materials, or to be exported. These programmes have also made it possible to clean up several thousand plastic waste hotspots (box 8.1).