 The ASC is charged with filing a report to Congress each year, on the activities of TAF.Real Estate Appraisal practice in the US is regulated by the various states.TAF's Appraisal Standards Board (ASB) promulgates and updates best practices as codified in the Uniform Standards of Professional Appraisal Practice (USPAP), and TAF's Appraisal Qualifications Board (AQB) promulgates minimum standards for appraiser certification and licensing.