Who is required to comply with TT-only SE check-in? April 22, 2021 03:35 Updated Any individual aged 7 years and above will be required to use a TT App or TT Token to perform SafeEntry check-in. Related articles Will children be required to use TT-only SE check-in? When will TT-only SE be rolled out? Would venues still be able to allow entry by ID when implementation of TT-only SE begins? Venues already have SafeEntry. Why do we need TT-only SE? What happens if the SafeEntry QR mode is suddenly out of service, and TT App users are unable to check in to SafeEntry?