Where doctors follow Standards of Care, lawyers follow Rules of Professional Conduct, and real estate agents follow real estate law – appraisers follow the Uniform Standards of Professional Appraisal Practice, or the USPAP. And it helps to understand what it is, whether you’re a homebuyer or seller journeying through the appraisal process or an aspiring appraiser. Let’s take a look at why the USPAP is so important.