The format of the 2009-2010 Guide is essentially unchanged from the 2007-2008 edition. However, there are many changes in the advisory tables, some of which reflect updates to methods of calculating consumption advisories, while others reflect changes in contaminant levels. This new edition incorporates approximately 120,000 test results performed on about 12,000 samples, and also provides consumption advice for about 100 more locations than the last edition. Results from the Sport Fish Contaminant Monitoring Program are used to develop the tables in the Guide, which give size-specific consumption advice for each species tested from each location. This advice is based on health protection guidelines developed by Health Canada. The Guide is published every other year by the MOE in partnership with the MNR.