Someone already linked the Wikipedia article.

But to expound on that, some US states make people sign a pledge to not participate in BDS if they have a job or even just contract with the state.

It’s incredibly fucked up and few people talk about it.

Inside every major contract Missouri signs with a business sits a clause about boycotting Israel.

All but the smallest companies have to agree not to participate in any movement that aims to boycott, divest from or sanction companies in Israel.

Missouri isn’t alone. At least 36 other states have anti-BDS (boycott, divest or sanction) measures that bar state contractors from refusing to do business in Israel, or otherwise boycotting or divesting from the country or its occupied territories.

https://kcbeacon.org/stories/2023/10/24/missouri-anti-bds-israel-contracts/