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Consumer Price Index
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Recent and upcoming methodology changes: 2025
Changes to wireless telephone services source data and methodology (posted June 12, 2025)
With the release of July 2025 data on August 12, 2025, BLS will replace the survey data collected for the CPI's wireless telephone services index with secondary source data and non-traditional index methods.
A paper on "Use of alternative data and methods in the CPI for wireless telephone services" will be posted to our website on July 15, 2025, and a new factsheet "Measuring Price Change in the CPI: Wireless Telephone Services" will be posted to our website on August 11, 2025.
Changes to leased cars and trucks source data and methodology (updated May 13, 2025)
Effective with the release of April 2025 data on May 13, 2025, BLS has replaced the survey data collected for the CPI’s leased cars and trucks index with transaction data purchased from a vendor to increase the accuracy of the index.
The Measuring Price Change in the CPI: Leased cars and trucks factsheet has been updated to reflect these changes.
Last Modified Date: June 12, 2025