In a briefing to reporters on Wednesday, Mark Toner said that while the United States opposes boycotts of Israel, it is up to Israel to make decisions regarding its borders.

“While we oppose boycotts and sanctions of the state of Israel, we also support firmly freedom of expression,” Toner said. “That said, it’s – this is a sovereign decision for Israel to make regarding its borders.”

The law, adopted Monday by the Knesset, bans entry to foreigners who publicly call for boycotting the Jewish state or its settlements.

Several Jewish American groups have condemned the new law, including the Anti-Defamation League and the American Jewish Committee.

According to the new law, the ban applies to any foreigner “who knowingly issues a public call for boycotting Israel that, given the content of the call and the circumstances in which it was issued, has a reasonable possibility of leading to the imposition of a boycott – if the issuer was aware of this possibility.” It includes those who urge limiting boycotts to areas under Israeli control, such as the West Bank settlements.

Some backers of the bill say it would be used only against those active in organizations that support BDS, and would not block an individual for something she or he might once have said.