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GAP Checklists and Guidance by Commodity

These commodity specific resources have been compiled by United Fresh for your convenience. Related United Fresh resources can be found on our Harmonized Standard webpage.





Green Onions


Lettuce and Leafy Greens


Onions (dry bulb)                  


Following outbreaks in summer 2019, United Fresh and the Texas International Produce Association coordinated multiple meetings with the Mexican papaya industry, supply chain members, researchers, and representatives from FDA and the Mexican National Service of Agro-Food Health, Safety, and Quality (SENASICA) to address the food safety challenges associated with the production and handling of papaya. Commodity-specific measures were desired, similar to the approaches taken by the tomato and leafy greens industries, to align the entire growing and packing industry of papayas in Mexico under the same food safety protocols.

The first edition of the resulting food safety best practices, published in April 2020, may be downloaded below in both English and Spanish. The webinar discussing this document can be found below.

Download the Papaya Best Practices (English)
Download Las Mejores Prácticas de Papaya (Español)
Watch Papaya Best Practices Webinar (English)

In November 2020, the USDA-ARS developed a paper called “Salmonella inactivation and sponge/microfiber mediated cross-contamination during papaya wash with chlorine or peracetic acid as sanitizer”. This research supports the best practices contained in the guidelines. That document can be found here.

Continuing in the 2020 efforts, a papaya safety checklist was developed in May 2021 to supplement the Best Practices Guide and to serve as a self-audit that growers may use to assess their existing practices. This checklist may be adapted for use as a 3rd party audit addendum accompanying holistic GAP programs such as the Produce GAPs Harmonized Standard.

Download the Papaya Safety Checklist (English)
Download la lista de verificación de inocuidad de la papaya (Español)
Watch Papaya Safety Checklist Webinar (English)
Watch la lista de verificación de inocuidad de la papaya (Español)



For any questions on these resources or to report broken links, contact Katie McGowan, Manager, Food Safety Programs, via email or by phone at (202) 303-3402.