On August 16 President Biden signed the Inflation Reduction Act of 2022 (P.L. 117-169; H.R. 5376). This was enacted via the budget reconciliation process so only 51 votes were needed to pass this in the Senate. And there are various restrictions on what can go in the bill and it can’t lose revenue in the 11th year out and beyond. So the numerous energy credits added or expanded in this law generally end expire 12/31/32. And this law’s official name is “an act to provide for reconciliation pursuant to title II of S. Con. Res. 14” due to the required process (has to have the word reconciliation in it). The unofficial name that you’ll hear is Inflation Reduction Act of 2022 or IRA (which might be confusing).
Single-spaced, this act is 273 pages with 128 pages – or 47% related to tax law changes (these are in Title I of the Act but a lot of these pages are in Subtitle B on prescription drug pricing reform (which tax-wise only includes a minor change to IRC §223 on health savings accounts and a new drug excise tax at §5000D).