This interim progress report on the impact of the Class Action Fairness Act of 2005 was presented to the Advisory Committee on Civil Rules on May 22, 2006. The report examines class action filing trends from July 1, 2001, through June 30, 2005, in three federal district courts and includes data on the first four months after CAFA went into effect. Future reports will present the results of statistical tests of the impact of CAFA on federal courts across the country.