Yes i was referencing the Great Lakes Regional Championship Series

http://www.greatlakes-scca.org/node/249

National Drivers were not excluded from races but from points for the "Regional" championships.

From the 2012 RCS rules:


Drivers who participate in the current year Runoffs shall not be eligible for Regional Championships. Drivers who earn more than 13 National points within the GLD Pointskeeping shall not be eligible for Regional championships.
looks like references to "National" drivers is gone from this year's RCS.