Dual certification refers to a teaching license both for general primary and/or secondary education and special needs education simultaneously. This term is unique to the United States, where licensure policy has traditionally offered options for teacher candidates to earn an initial stand-alone license in either general or special needs education, and contrasts with initial teacher education policy patterns outside the United States, where teachers are not typically permitted to earn an initial license for special needs education alone. Various forms of dual certification have existed in the United States for many decades, but until recently they were not the norm. Contemporary teacher educators and policymakers in the United States have adopted and encouraged dual certification as a way of supporting the preparation of teachers for effective inclusive teaching. As a result, dual certification is viewed as a means of restructuring and expanding the entirety of the preservice, initial teacher education curriculum to become highly responsive both to the increasing diversity of students and to the wider range and more complex needs of students who struggle in school, among them students with special needs. Because dual certification addresses the vital question of how best to prepare initial teachers for inclusive teaching, its fundamental, underlying concerns transcend specific national structural or policy issues regarding licensure. Instead, dual certification reflects a focus on the content of initial teacher preparation writ large regarding what kinds of redesigned, reconceptualized clinical, course, and curricular experiences might be most effective in preparing teachers for high-quality inclusive teaching practice. Dual certification calls into question the nature of teacher expertise, challenging basic beliefs about where the responsibility of general education teachers ends and where that of special needs education teachers begins. In this way, dual certification can be viewed as a specific national policy vehicle that addresses common international concerns for developing appropriate preservice curricula that are responsive to the demands of inclusive educational practice. Implementing dual certification is not without its challenges, however, as reflected in some of the early and ongoing attempts at implementation. Therefore, it is critical both to anticipate potential pitfalls as well as to identify potential solutions that are appropriate to the fundamental purposes of preparing teachers for inclusive practice.