Synopsis As Introduced Amends the Property Tax Code. Requires that, in counties with 3,000,000 or more inhabitants, on or before October 1, 2009, the county assessor shall reassess all property in the county for which 2009 is not the general assessment year. Provides that the reassessments may not be done through the application of one or more factors, mathematical or otherwise. Amends the State Mandates Act to require implementation without reimbursement. Effective immediately.