TikTok said it could go dark on Sunday, the day the ban is set to take effect.Jaap Arriens/NurPhoto via Getty ImagesTikTok may go dark Sunday unless Biden ensures the ban won't be enforced.The Supreme Court upheld a law requiring TikTok's US operations to be sold by Jan. 19 or face a ban.Biden's administration doesn't plan to enforce the ban before Trump takes office.TikTok said Friday it would be forced to go dark on Sunday, the day the platform ban is set to take effect, unless the Biden administration takes further action to ensure it will not be enforced."The statements issued today by both the Biden White House and the Department of Justice have failed to provide the necessary clarity and assurance to the service providers that are integral to maintaining TikTok's availability to over 170 million Americans," TikTok said in a statement posted on X."Unless the Biden Administration immediately provides a definitive statement to satisfy the most critical service providers assuring non-enforcement, unfortunately TikTok will be forced to go dark on January 19," the statement continued.The statement came after the Supreme Court earlier on Friday upheld the law banning TikTok.A White House spokesperson did not respond to a request for comment.The law, which was passed by Congress and signed by Biden last spring, required TikTok to be banned unless ByteDance, its China-based parent company, sells the app's US operations by January 19.The law specifically bans US app stores, like Apple's and Google's, from carrying or updating the app.