International Association of Assessing Officers (IAAO)

IAAO is a nonprofit, educational, and research association. It is a professional membership organization of government assessment officials and others interested in the administration of the property tax.

County Assessors Association of Oklahoma(CAAOK)

The County Assessors of Oklahoma is an organization established with the objectives of exchanging experiences and ideas with all county assessors of the state of Oklahoma.

IAAO Chapter of Oklahoma

This chapter was founded in 1985 to help in the advancement of the objectives of the International Association of Assessing Officers (IAAO) in Oklahoma