The purpose of USPAP is primarily to:

The purpose of USPAP, or the Uniform Standards of Professional Appraisal Practice, is primarily to ensure uniformity in appraisal practices. USPAP sets the standard for how appraisals should be conducted, communicated, and reported to maintain the credibility and reliability of appraisal professionals in various contexts. By adhering to these established standards, appraisers can produce consistent results which are essential for stakeholders such as lenders, buyers, sellers, and regulatory bodies.

Uniformity in appraisal practices helps to create a level playing field within the industry, assures users of appraisal services that a certain level of quality and professionalism is being adhered to, and helps mitigate the risks associated with appraisal malpractice or inconsistency. This uniformity also fosters trust in the appraisal process, which is vital for the functioning of real estate markets.

While the other choices might touch on important aspects of appraisal and the broader financial and real estate markets, they do not capture the core purpose of USPAP, which is firmly centered on establishing and maintaining consistent appraisal standards across various contexts.