The standard defines the requirements relating to the professional activity of the Access Advisor (ref. UNI CEI EN 17210:2021 and UNI CEI CEN/TR 17622:2021). It is the professional figure who, by applying the approach and principles of Design for All/Universal Design (DfA/UD), promotes inclusion and develop/verify projects/solutions for the accessibility of the built environment, products and services, making them compatible with the needs, abilities and limitations of the greatest possible number of people, with a view to global sustainability. This figure is aimed at private individuals, institutions/companies/organisations public/private. The standard identifies two levels of responsibility: Manager consultant for accessibility and technical consultant for accessibility.