(1) Within 12 months of the day on which this Act is passed, the Secretary of State must, for the purposes of promoting the wellbeing of children—
(a) direct the Chief Medical Officers of the United Kingdom (“the UK CMOs”) to prepare and publish advice for parents and carers on the use of social media by children at different ages and developmental stages, and
(b) by regulations made my statutory instrument require all regulated user-to-user services to use highly-effective age assurance measures to prevent children under the age of 16 from becoming or being users
This clause has popped up before; it is now back again.
Page 21, https://bills.parliament.uk/publications/63901/documents/7465