It has been considered as a model for other countries who are interested in standards-based certification systems for teachers (Harris and MacKenzie, 2007; Ingvarson and Hattie, 2008). Nearly all states in the United States allow teachers to take the NBPTS examination as a mechanism for increasing their salary, by tying National Board Certification to higher salaries. As of October 2012, the National Board had certified 97 000 teachers nationwide, and more than 6 000 became National Board certified in 2011. The Certification is good for ten years and then the teacher must reapply.