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Regulatory Information

» Lachat Methods Regulatory Quick Reference Guide (PDF: 424KB)
Matrix of Lachat methods that may be used for regulatory reporting. Always consult your local regulatory officials about specific methods' regulatory use.
Regulatory Downloads
» Hach/Lachat Method Update Rule Position Statement (PDF: 83KB; 1/08)
» EPA Letter on Method Modification Flexibility (PDF: 75KB; 11/07)
» EPA Letter for Adaptation of Methods using SFA, FIA, and self-filling reagent vials (PDF: 60KB)