This was one of the very serious limitations of the previous protocols: that there was not a clear basis on which to return lands that had been identified as positive to production.
In the new guidelines, this has been addressed. Now regulatory action with regard to a field will cease after two negative test results from separate intensive surveys. We now have a very clear basis to remove regulatory controls from a field that had been subject to those controls, based on those fields' being demonstrated not to be positive.