Here is the standard from USDA for extracted honey. 

http://www.ams.usda.gov/AMSv1.0/getfile?dDocName=STELDEV3011895

Produce, milk, meat etc with a US Grade A designation must be inspected by USDA to be 
called Grade A. 

I did not know this until my phone call to USDA, but he told me that honey and maple syrup 
are exempt from inspection and grade is determined by the producer (maybe packer also). 

Lets just say this does not appear to be a standard or regulation that gets much scrutiny by 
the USDA. 

I encourage anyone with detailed questions to call the contact I posted in earlier posting at 
USDA. He was easy to reach and very prompt in his information and seems interested in 
honey and beekeepers. 

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