The law signed in April mandates a ban on new TikTok downloads on Apple or Google app stores if ByteDance fails to divest the site.
Users who have downloaded TikTok would theoretically still be able to use the app, but the law also bars US companies from providing services to enable the distribution, maintenance, or updating of it once any ban begins.
The president can issue a one-time, 90-day delay to the ban if he certifies to Congress there has been evidence of significant progress and there are binding legal agreements in place to allow a complete divestiture in three months.
Separately, TikTok CEO Shou Zi Chew plans to attend the US presidential inauguration on Jan 20 and sit among high-profile guests invited by Trump, a source told Reuters.
Representative Frank Pallone, the top Democrat on the Energy and Commerce Committee, criticized the decision to invite Chew on social media platform X.
