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Pesticide Residue Tolerances (MRL)
US Tolerances
Within the United States, the Environmental Protection Agency (EPA) is responsible for regulating agricultural chemicals and setting the tolerance, or maximum residue limit (MRL), for the amount of pesticide residue that remains in or on food crops marketed in the USA. When setting the MRL for a pesticide, the EPA must consider the toxicity of the pesticide and its break-down products, how much and how often the pesticide is applied, and how much of the residue remains in or on the food by the time it reaches market and is prepared. The EPA tolerances apply to both food grown within the US and food imported into this country. For more information about how EPA sets MRLs visit their webpage: EPA Pesticide Tolerances. To see the table of US MRLs posted by the Northwest Horticultural Council visits their web page: US MRLs.
International Tolerances (Codex MRLs)
The maximum residue tolerances for commodities being exported to other countries were established by the Codex Alimentarius Commission. Some countries have the same MRLs as the US, but others are stricter. Its important to know the MRLs for the country you wish to market your fruit. The Northwest Horiculture Council lists a table of Codex MRLs on their website. You can also search the MRL database at the official Codex website or visit the USDA/Foreign Agricultural Service's MRL website to search their database.
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