OECD Maximum Residue Limit Calculator

With the goal of harmonizing the calculation of maximum residue limits (MRLs) across the Organisation for Economic Cooperation and Development, the OECD has developed an MRL Calculator. View the OECD MRL calculator. 

It is made up of an Excel spreadsheet simple to use without requiring the user to have extensive statistical knowledge. 

Canada and the United States, along with other OECD member countries, use the OECD MRL Calculator to calculate pesticide tolerances or MRLs. The OECD MRL Calculator replaces and supersedes the NAFTA MRL Calculator.