Note on the Chained Consumer Price Index For All Urban Consumers (C-CPI-U)

The Bureau of Labor Statistics first began publishing the Chained Consumer Price Index for All Urban Consumers 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).

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) 691-6959 or by electronic mail at


Last Modified Date: July 27, 2017