The Agreement on Internal Trade is a very consensus-based process where jurisdictions are encouraged to work out among themselves the process for identifying irritants to mobility of labour or goods or capital, and to work together to eliminate those barriers. On average there are only two or three cases that come forward that are actually disputes that need to come before a panel for a decision. The number of disputes that would go this far to result in monetary penalties would likely be very low.
On November 1st, 2012. See this statement in context.