@Gayle p thank you for starting this thread. I'm new to this site and just stumbled upon this as I was researching on CFOs since I want to start one. I make royal icing for my cookies also using meringue powder. I use Wilton's which can be bought anywhere. I would imagine that item has been tested and approved since it's out in shelves for public purchase. Can you please share any outcome that's resulted in you either getting it approved through the county or did you end up finding another substitution to use for the meringue powder?