Autism Accreditation is UK’s only autism specific quality assurance programme of support and development for all those providing services to autistic people. Achieving accreditation proves that an organisation is committed to understanding autism and setting the standard for autism practice.
 
Autism Accreditation is an internationally recognised quality standard, and with 25 years of accreditation expertise, we are the longest running programme in the world.

NB: this is taken from the NAS website, would need editing a bit!– https://www.autism.org.uk/