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Consumer Price Index
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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).
- Questions and Answers page about the C-CPI-U.
- Methodology (Handbook of Methods)
- Introducing the Chained Consumer Price Index
- Historical Chained Consumer Price Index (online database)
- Effects of the COVID-19 pandemic on C-CPI-U weights
Related Articles
- Comparison between Chained CPI-U and Regular CPI-U All-US Indexes in the Housing Sector (2000-2004) (PDF)
- Comparison between Chained CPI-U and Regular CPI-U All-US Indexes at Lower Item-Aggregate Levels(2000-2003) (PDF)
- Random Errors and Superlative Indexes
- Improving initial estimates of the Chained Consumer Price Index
- Measurement of Chain Drift in the Chained CPI‐U
- Measuring consumer price change during economic downturns
For additional information on the C-CPI-U contact the CPI information office at cpi_info@bls.gov or 202-691-7000.
Last Modified Date: July 20, 2026