Who determines FFP certification?

Who determines FFP certification?

You can find lots of good information about Amazon's requirements on their website - https://www.aboutamazon.com/sustainability/packaging  Specifically for FFP, you will find the criteria in the Amazon Frustration-Free Packaging Program Certification Guideline at: click here

Below is summary for your reference.
i.    Must Pass ISTA 6-Amazon.com-SIOC test protocol
ii.    Product-to-Packaging Ratio (>30% for Fragile Products & >50% for Non-Fragile)
iii.    Recyclable Packaging (100% Curbside recyclable materials)
iv.    Easy-to-Open (Less the 120 seconds)

Additional questions can be directed to Amazon through their Vendor Central portal at http://vendorcentral.amazon.com/