What rules must appraisers follow?

What rules must appraisers follow? – Uniform Standards of Profesional Appraisal Practice

Appraisal Standards Board (ASB)

The ASB sets forth the rules for developing an appraisal and reporting its results. In addition, it promotes the use, understanding and enforcement of the Uniform Standards of Professional Appraisal Practice (USPAP).

FIRREA requires that real estate appraisals used in conjunction with federally-related transactions be performed in accordance with USPAP. More than 80,000 state certified and licensed appraisers are currently required to adhere to USPAP. USPAP contains the recognized standards of practice for real estate, personal property and business appraisal.

The authority of USPAP extends beyond FIRREA. Since 1992, the Office of Management and Budget (OMB) has required federal land acquisition and direct lending agencies to use appraisals in conformance with USPAP.