Hi Dan and fellow Bee-L listers.

   We are reaching a point when WHOLESOMENESS of our food products is considered of out most importance, and it should be so. We must guard against foreign substances that may harm consumers if ingested in our foods.  As food producers, as beekeepers are, we are responsible for the wholesomeness of the food we produce, hence we must comply with sanitary regulations applied to the
trade.  Governments are legislating in that direction and predictably there will be laws to that effect surfacing from day to day.
Example:  In the United Kingdom, and I may suggest, pretty soon in all the EC, the law is ZERO level for contaminants in honey.
Best regards.
Dr. Rodriguez