The app’s availability in the U.S. has been thrown into jeopardy over data privacy and national security concerns.

The U.S. Supreme Court’s decision could come Friday in the case about whether TikTok must shut down in a few days under a federal law that seeks to force its sale by the Chinese company that owns the social media platform.

The Supreme Court said it may announce opinions on Friday, a last-minute addition that comes just two days before a law that would ban TikTok is set to go into effect.