WASHINGTON – The Food and Drug Administration proposed Friday the most sweeping food safety rules in decades, requiring farmers and food companies to be more vigilant in the wake of deadly outbreaks in peanuts, cantaloupe and leafy greens.

The long-overdue regulations are aimed at reducing the estimated 3,000 deaths a year from foodborne illness. Just since last summer, outbreaks of listeria in cheese and salmonella in peanut butter, mangoes and cantaloupe have been linked to more than 400 illnesses and as many as seven deaths, according to the federal Centers for Disease Control and Prevention. The actual number of those sickened is likely much higher.

The FDA’s proposed rules would require farmers to take new precautions against contamination, to include making sure workers’ hands are washed, irrigation water is clean, and that animals stay out of fields. Food manufacturers will have to submit food safety plans to the government to show they are keeping their operations clean.