This paper presents the third part of the "Massachusetts Primer on Special Education and Charter Schools." Part III addresses the issues concerning the education of students with disabilities at all stages in the development and operation of a Massachusetts charter school. The information is intended to inform those who are responsible for the design, development, and operation of a charter school. The information is focused on specific aspects of implementing a special education program during the pre-authorization, start-up, and operating phases of the school. (Contains 27 resources.) [This document has been developed with the assistance of the TA Customizer Project. For other sections, see Section I (ED543919) and Section II (ED543920).]