The most current version is undergoing final editing and is anticipated being posted by the end of February 2010.
The document below contains approved recommendations from the working group. They are recognized to be minimum standards and may be revised as new analytical techniques, scientific knowledge and legal requirements evolve. The current version dated October 1, 2008 was updated to include Uncertainty Recommendations and some minor administrative changes from the previous version dated August 9, 2007. Specifically, the changes were made in red colored text on pages v, vi, ix, 35-42, 45 and 50. All other versions are obsolete and can be viewed under the archived section of this website. Also, please note that the offical version of the document is the Adobe format below, the HTML format is only provided for quick referencing.
