Montana’s First-in-the-US TikTok Ban Sows Doubt on Enforcement

Montana’s move to ban ByteDance Ltd.'s TikTok within its borders will test how well officials in the US can enforce restrictions against the besieged social media giant.

Under the ban—which is already facing a lawsuit filed by a group of TikTok creators—app platforms are barred from providing TikTok for download to state residents. Individual access of the app is also considered a violation of the law.

Montana’s ban is the strongest restriction targeting TikTok in the US to date in a broad national movement to curtail the app on government devices, over concerns about the Chinese government’s access to American ...