Note on a New, Supplemental Index of Consumer Price Change

The Bureau of Labor Statistics has begun publishing a consumer price index (CPI) called the Chained Consumer Price Index for All Urban Consumers, effective with release of July data in August 2002. Designated the C-CPI-U, the index supplements the existing indexes already produced by the BLS: the CPI for All Urban Consumers (CPI-U) and the CPI for Urban Wage Earners and Clerical Workers (CPI-W).


  • Current C-CPI-U indexes (table 1C), historical C-CPI-U indexes (table 24C), and historical C-CPI-U percent changes (table 26C) are available here in PDF format.
  • These tables are also available each month in the Consumer Price Index Detailed Report as tables 1C, 24C and 26C.

Other explanatory materials

For more information on the C-CPI-U, write to:

Bureau of Labor Statistics
Division of Consumer Prices and Price Indexes
2 Massachusetts Ave. NE, Room 3130
Washington, DC 20212

Or contact Rob Cage either by telephone at (202) 691-6952 or by electronic mail at


Last Modified Date: April 26, 2011