On September 5, 2007, the Board served a decision that modifies its simplified rail rate guidelines, creating a simplified stand-alone cost approach for medium-size rail rate disputes and revising its three-benchmark approach for smaller rail rate disputes. The Board also places limits on the total relief available over a 5- year period under these two simplified approaches. Several rules in the Code of Federal Regulations (CFR) have been updated to reflect the changes in the simplified rail rate dispute approaches.