On Friday the Supreme Court affirmed that it would be legal to force TikTok owner ByteDance to sell the immensely popular app to a non-China-based company or to ban it in the U.S. Last week an attorney for TikTok had argued before the Supreme Court that a bipartisan law that mandated the sale or ban infringed on the company’s First Amendment rights.

The Supreme Court has upheld the law that could lead to TikTok going dark for the 170 million users in the US. When could the ban go into effect?

What does a TikTok “ban” mean for TikTok users? The Supreme Court has now upheld a federal law that calls for a nationwide ban on TikTok unless it finds a new owner that isn’t Chinese by Sunday. But the White House says enforcing the law will fall to the next administration,