Those interested in obtaining an alternative teaching license can pursue a Subject Matter Expert Standard Teaching 6-12 Certificate. This certification route allows the applicant to bypass the educational requirements for a Standard Certificate if they can prove five years of work experience relevant to the subject area of certification. Upon issue of this certification, the holder of this certificate has two years to pass the NES Assessment of Professional Knowledge: Secondary Exam. However, three years of postsecondary teaching experience can substitute for this requirement. Subject matter experts are exempt from requirements for the Subject Knowledge tests and the U.S. and Arizona Constitution requirements.