This study aimed to examine the relationship between policies related to the recruitment, selection, preparation, and certification of new teachers and (a) the quality of future teachers as measured by their mathematics content and pedagogy content knowledge and (b) student achievement in mathematics at the national level. The findings revealed statistically significant associations between the overall strength of these quality assurance arrangements and the quality of graduates. The authors found that countries with strong quality assurance arrangements, such as Chinese Taipei and Singapore, scored highest, whereas countries with weaker arrangements, such as Georgia and Chile, tended to score lower on these measures. The results also showed a statistically significant relationship between quality assurance arrangements and the mathematics achievement of students.