Same for Canada. I know a woman who has an organic cat and dog biscuit business. It was a huge effort to become organic certified, took a year or longer, and there were inspections. She grows all the vegetable ingredients, eggs are from her own chickens, so mostly she purchases certified organic grains and flours. But this meant both her garden, her chickens, and her suppliers all had to be looked at.

If you're interested:

http://katiesfarm.ca/