From APS's Special Education page:

Mission Statement

We are leaders and stewards of special education services and providers. Our responsibilities include allocating resources and providing guidance to schools based on identified needs to assure compliance. Systems are in place that improve student outcomes as measured by quality indicators, stakeholder feedback and student progress. 

Guiding Principles

• Serving students according to individualized need(s)

• Ensuring quality of access to educational services regardless of where the student lives in the city

• Using evidence-based practices for all students

• Meeting our students' needs in their own communities