To receive the German logo, the product must be completely free of gene technology, with a contamination allowance of up to 0.1%. Food verified by the not-for-profit Non-GMO Project allows up to 0.9%.

Therefore, the idea of GMO-free areas for nature protection and seed production, such as recently discussed in Europe, merits special attention.

So-called “GMO-free” zones have been sprouting up county by county across the U.S. Lead initially by the state of California, these zones indicate areas where growing GMO crops is outlawed.