Here is what I came up with for my state (Colorado)
"If you plan to sell your eggs for '"retail only", and you produce less than 250 dozen per month, then you are exempt from regulation by the Department of Agriculture. "Retail only" means a stand at your home, selling to friends and neighbors, or at a farmers market.
If you wish to sell your eggs to a local grocery store, or other retail outlet, then there are some regulations you must follow. Please view the Colorado Department of Agriculture's candling, grading and carton labeling requirements.
Additionally, the Colorado Department of Public Health and Environment requires you to be and "approved source" to sell eggs to stores. Becoming an approved source involves a visit to your farm by an inspector. The inspector will check to see that you have proper facilities to:
* wash
* sanitize
* candle
* grade and
* refrigerate eggs
If you are interested in being recognized as an "approved source", or if you have any other questions, please contact Steve Bornmann."
Sounds pretty reasonable actually