Organic food is currently an $11 billion industry and growing. The Organic industry is now dominated by the big agribusiness conglomerates in this country. "Organic", as it was originally envisioned back in the 70's, was established as an alternative to all the mass produced and highly processed foods that people of the organic movement believed to be unhealthy to people, to the environment and to the small farming communities that were being systematically destroyed.
Eventually as the big agribusiness interests began to see dollar signs, they got in bed with their old friend the USDA to rewrite what organic means and to tailor it to their system of mass producing things and shipping it all over the world. They also figured out ways to make a lot of highly processed foods organic, like TV dinners. If history be any judge, as time goes by, these interests will further refine the definition to fit their enormous business model and to squeeze out the small farm and family businesses.
The point is, in my opinion, the term "Organic" is almost meaningless in the commercial sense. I certainly wouldn't strive to meet it. If you want to produce a very healthy egg for your family, then research and decide what you want to feed your chickens in order to get great tasting eggs, be it organic feed or natural feed. If you have a board or two of treated wood in the coop, so what. If you are getting awesome eggs who cares?
If you are selling your eggs and want to conform to the USDA definition of Organic so you can put that on the carton, then knock yourself out, but my guess is that by the time your done you will have to charge $15 a dozen for your eggs just to break even.
Dennis