Assessor 
Ken Yazel

Due to system maintenance, the Assessor's web site may be unavailable from 10:00pm(CDT) to 11:00pm, Monday, April 24th. We apologize for any inconvenience this may cause.

Appraiser Accreditation

Oklahoma law

Oklahoma statutes require assessors, first deputies, and appraisers working for county assessors to be accredited. To receive the required accreditation, assessors and their appraisal staff must successfully complete a series of seven classes conducted by the Oklahoma State University Center for Local Government Technology (CLGT). In Oklahoma, only accredited appraisers can place value on property in the performance of their duties for the county assessor's office.

Tulsa County Assessor Policy

It is the policy of the Tulsa County Assessor that all employees complete the seven courses required for Advanced Accreditation. This ensures Assessor's office employees, regardless of their official position, are prepared to assist taxpayers with questions related to how the office values their property and how the office goes about fulfilling its statutory duties.

Initial accreditation

By statute, Assessors, First Deputies and "all personnel involved in the actual appraisal of real or personal property" must achieve Initial Accreditation. Initial Accreditation consists of two academic units:

Advanced accreditation

By statute, Advanced Accreditation must be earned by the assessor and first deputy. All other deputies involved in the actual appraisal of real or personal property must also earn Advanced Accreditation. Advanced Accreditation consists of five academic units:

Continuing Education

Within three calendar years after receiving Advanced Accreditation, 30 hours of continuing education credits are required to be earned in order to maintain the accreditation. These requirements are established, reviewed, and updated periodically by the Accreditation Committee, which is comprised of the Oklahoma Tax Commission Division Director, the OSU CLGT Director, and the Oklahoma County Assessors Association President.

Other Education

All Tulsa County Assessor employees are encouraged to continue their education, either in college and/or through classes provided by the International Association of Assessing Officers (IAAO), where they can receive Professional Designations by completing a rigorous course of study.

Oklahoma State University Center for Local Government Technology

International Association of Assessing Officers

Ken Yazel — Tulsa County Assessor

Tulsa County Administration Building, Room 215  |  500 S. Denver  |  Tulsa, OK 74103

Phone: (918) 596-5100  |  Fax: (918) 596-4799  |  Email: assessor@tulsacounty.org

Office hours: 8:00–5:00 Monday–Friday (excluding holidays)