What is an MRL and how is it enforced?

• A. Maximum Residue Limit; enforced by regulatory agencies to ensure residues in food are safe.
• B. Minimum Residue Level; enforced by marketing groups to ensure quality.
• C. Maximum Residue Limit; enforced by growers unions to reduce cost.
• D. Measured Residue Level; enforced by water districts.

Answer: (A)

Maximum Residue Limit means the highest amount of a pesticide residue that is legally allowed in or on a food. This limit is set based on toxicology data and expected dietary exposure to protect consumers. Regulatory agencies establish these tolerances and enforce them by testing foods, inspecting farms and processing facilities, and checking imports. Growers use label directions and pre-harvest intervals so residues decline to or below the limit by harvest. If residues exceed the limit, the product may be unsafe and subject to enforcement actions. MRLs are specific to each pesticide and commodity and can vary by jurisdiction.