Harmonizing biotech regulations
The most direct approach would be to have simultaneous approval processes across countries and the respective regulatory agencies share results on an ongoing basis. This should reduce the time period for working through the details, lower costs and increase the amount of oversight provided by the countries collectively. This would allow each country, or group of countries, to maintain its own regulations, while gaining the benefits of sharing analyses. If China does buy 10-15 MMT per year, it would be in its best interest to participate in this coordinated authorization process.
A less beneficial option would be to increase the threshold for low level presence of unapproved varieties as long as the varieties have been approved in other countries. That would still require some segregation of grain, but remove the impossible standard of zero tolerance in a bulk handling industry.
Markets will continue to change and regulatory systems must change along with them. Harmonization of regulations across countries with reasonable standards would work to the advantage of seed developers, farmers, handlers and end users.