22 March 2023 :

(March 20, 2023) - Senate passed HB 186 to allow firing squad.
The Senate voted 24-11 on Monday, while the House had voted 50-15 on March 5.
House Bill 186 will move to Republican Gov. Brad Little’s desk next.
Firing squads will be used only if the state cannot obtain the drugs needed for lethal injections. At least one death row inmate has already had his scheduled execution postponed multiple times because of drug scarcity.
Idaho previously had a firing squad option on the books but has never used it. The option was removed from state law in 2009 after the Supreme Court upheld a method of lethal injection that was commonly used at the time.
Only Mississippi, Utah, Oklahoma and South Carolina currently have laws allowing firing squads if other execution methods are unavailable. A judge has put South Carolina's law on hold until a lawsuit challenging the method is resolved.

https://www.cbsnews.com/news/idaho-bill-executions-firing-squad-death-penalty-lethal-injection/
https://edition.cnn.com/2023/03/21/politics/idaho-firing-squad-bill/index.html