The full wording is "Any provision directly contracted or arranged internet transit or peering services enabling the function or optimization of the mobile appl

The full wording is "Any provision directly contracted or arranged internet transit or peering services enabling the function or optimization of the mobile application within the U.S.;" I've written my own BGP implementation and even I'm not quite sure what they mean by this. My best guess is this means ISPs operating in the US can't directly peer with a network that enables the functioning of TikTok, but probably doesn't go as far as requiring them to block any IP address ranges received indirectly via other networks. This applies both to TikTok and WeChat.