The BLS makes nearly all of their products publicly available for free. You can poke around the old-school way here: https://download.bls.gov/pub/time.series/

The BLS makes nearly all of their products publicly available for free. You can poke around the old-school way here: https://download.bls.gov/pub/time.series/ https://download.bls.gov/pub/time.series/ They have an API with documentation here: https://www.bls.gov/developers/ https://www.bls.gov/developers/ And a few other options here: https://www.bls.gov/data/ https://www.bls.gov/data/ But I suspect that what you mean is that the raw data used to calculate these metrics isn’t available. Such as the “worker X on 25 Feb found that the price of a pound of flour at the Kroger store #357 is $1.” I suspect there are two reasons. (I can’t say for sure because I don’t work at the BLS, but I am a statistician, work for the government, and have been involved in decisions not to release data). 1. The BLS almost certainly contracts the leg work for the CPI. While the calculations are relatively simple (arguments about methodology excluded), the work to collect prices nationwide is nontrivial. Including permission to release the data publicly likely increased the cost of the contract. These data vendors also sell their price data to other “businesses intelligence” companies, and allowing the public release hurts their other business prospects, so they would charge a premium for it. And ironic as it may seem, government agencies/workers are interested being good stewards of the public’s tax dollars and had to make a value decision to not buy the rights to release the data. 2. For anything that isn’t legally/contractually prohibited from release, there may have been a conscious decision that the data at its most granular level either wasn’t useful to the public at all, or was likely to be misleading/misused because of critical gaps in what can be released. If the vendor for Alabama prices allowed release but the vendor for California prices did not, they may have just made the decision that releasing incomplete data set wasn’t a good idea.