See Uniform Standards of Professional Appraisal Practice.

Short for Uniform Standards of Professional Appraisal Practice, USPAP promotes standards and professionalism in appraisal practice, and is often enacted into law in a state. It is promulgated by the Appraisal Foundation, a non-governmental entity chartered by Congress to, among other things, maintain appraisal standards.

see Uniform Standards of Professional Appraisal Practices.