Unit 10 Schools as an organisation

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Hi
Can anyone help me?
I am currently answering a question 'Describe the codes of practice which apply to your role and state whether these are sectorwide, professional or organisational.'
It then lists:
Children's Act 2006
Child Protection and Safeguarding Vulnerable Groups Act 2006
Working Together to Safeguard Children
SEN Code of Practice
School Curriculum Education Act 1996/2002.

I dont understand the difference between sectorwide, professional and organisational?? Can anyone explain
Many Thanks
Michelle.