What are USPAP Advisory Opinions?

Advisory Opinions are guidance issued by the Appraisal Standards Board (ASB) on how the Uniform Standards of Professional Appraisal Practice (USPAP) apply to specific appraisal situations. Since 2024, they are published in the USPAP Guidance and Reference Manual rather than inside USPAP itself. For example, Advisory Opinion 41, adopted April 23, 2026, addresses the use of automated valuation models, regression software, and generative AI in appraisal and appraisal review assignments.