The purpose of this document is to serve as a resource for states, districts, professional organizations, teacher education programs, teachers, and others as they develop policies and programs to prepare, license, support, evaluate, and reward today's teachers. A systemic approach and supportive infrastructure are essential to successful implementation of these standards. In addition to this standards document, the Council of Chief State School Officers (CCSSO) has also released a complementary policy discussion document that outlines key considerations, recommendations, and cautions for using the standards to inform policy. This paper builds off of CCSSO's Education Workforce white paper (www.ccsso.org/intasc), which outlines the chiefs' strategic goals in building an educator development and support system of which these standards are the first step. In updating the InTASC model standards, efforts were made to ensure they align with other national and state standards documents that were recently revised or released. Specifically, this document has been reviewed to ensure compatibility with the recently-released Common Core State Standards for students in mathematics and English language arts, the National Board for Professional Teaching Standards (NBPTS) accomplished teaching core principles, the National Council for Accreditation of Teacher Education (NCATE) accreditation standards, the National Staff Development Council (NSDC) (now called Learning Forward) professional development standards, and the Interstate School Leader Licensure Consortium (ISLLC) 2008 educational leadership policy standards and CCSSO's companion document of performance expectations and indicators for education leaders. A glossary is included.