8:30 ET
JANUARY 2023 CPI WEIGHT UPDATE
Starting with January 2023 data, the BLS plans to update weights annually for the Consumer Price Index based on a single calendar year of data, using consumer expenditure data from 2021. This reflects a change from prior practice of updating weights biennially using two years of expenditure data.
https://www.bls.gov/cpi/
Consumer Price Index
https://www.bls.gov/news.release/cpi.toc.htm