Please could I confirm, when you mention ‘EPA’ are you referring to the United States Environmental Protection Agency?
Do your products make any antimicrobial, antifungal, antibacterial, or other pesticidal claims (for example, products marketed to disinfect, repel insects, remove allergens, or prevent bacteria),? If yes, I am aware these products need to be considered pesticides or pesticide devices under EPA regulations, even if the products would not otherwise be considered pesticides or pesticide devices under the EPA’s definition of a pesticide.
This is not an area I have personally had to delve deep into but there is information on Seller Central Help – did you search there?
Have you tried to connect with Catalog team members at SC if you are in a loop of approvals?