Notification G/SPS/N/CAN/1595/Add.1 announces that Canada has officially adopted a Maximum Residue Limit (MRL) for the pesticide linuron in celery. The MRL has been set at 0.5 ppm, with residues defined as N-(3,4-dichlorophenyl)-N-methoxy-N-methylurea, including metabolites convertible to 3,4-dichloroaniline (expressed as parent compound equivalent). This measure follows the Pest Management Regulatory Agency’s proposal PMRL2025-07 and has now been formally established to ensure food safety and regulatory consistency. The updated limit, effective 18 September 2025, applies to all celery marketed in Canada, and exporters, importers, and domestic producers must comply to avoid trade disruptions or non-compliance issues. This step aligns with Canada’s commitment to protect consumer health while harmonizing pesticide regulations with international practices.