Hello,
Please introduce yourself first, give the context of your question (why exactly do you ask), explain the search methods you have used so far, and list what you have found so far. Once you have explained all that, then I am sure someone will reply to your post.

Regards,
Elisabeth

Hello
I am researching on existing legislation in different countries regarding the use of feces as fertilizer to improve crops.
If you can share with cases that they know would be very grateful.
Greetings!