What the law says
Section 25 and Section 26, Children and Families Act 2014. Code of Practice § 3.1 to 3.5
Section 25 of the Children and Families Act 2014 places a duty on local authorities to ensure that education, health and social care services work together where this promotes children and young peoples wellbeing or improves the quality of special educational provision.
Local authorities and Integrated Care Boards must have arrangements in place to plan and commission education, health and social care services jointly for children and young people with SEN or disabilities under Section 26.
These joint commissioning arrangements must cover EHC needs assessments, EHC plans, EHC provision, and support for young people in preparation for adulthood.
In plain English
This is meant to be formal joint working, not a vague promise to cooperate. The system should be planned around the child so you are not left coordinating between education, health and social care yourself.