ABOUT USThe International Association of Assessing Officers (IAAO) is a global, nonprofit educational and research membership group for government assessment officials and professionals in property tax administration. Established in 1934, IAAO boasts over 8,400 members from various sectors and operates with an annual budget of $6.6 million, employing 24 full-time staff at its Kansas City, Missouri headquarters. IAAO's mission is to foster a global network of appraisal experts committed to fair property valuation and tax policy, providing professional development, research, and guidance. It aims to be acknowledged worldwide as the authoritative voice for mass appraisal standards, professional growth, and policy research through our guiding princi