<<Disclaimer: Verify this information before applying it to your situation.>>
 
Here are a couple of links I found regarding food labaling laws:
 
1. United States Federal Laws which Relate to Food Labeling
   http://http2.sils.umich.edu/~ssimcox/fdlaws.html
 
2. gopher://gopher.nara.gov:70/11s/register/laws
 
I hope these are helpful
 
 
Corey Nermo
White Rock, British Columbia Canada