Which of the following is NOT a requirement for appraisers under USPAP?

The requirement that is NOT mandated under USPAP pertains to developing personal appraisal styles. While appraisers may certainly have their own methods and preferences when performing appraisals, USPAP itself focuses on ensuring that appraisers adhere to ethical standards, competency, and proper reporting practices rather than dictating personal styles.

USPAP encourages appraisers to follow established guidelines, maintaining objectivity and professionalism in their work. Understanding industry standards is essential, as it informs the appraiser of current practices and norms expected in the field. Complying with local customs may also be necessary, as it reflects a recognition of the specific market dynamics and norms that can influence property valuation. Additionally, knowledge of antidiscrimination laws is crucial to ensure fair practices and adherence to legal standards in appraisals, thus promoting equity and preventing bias.

In conclusion, while personal appraisal styles can be beneficial for an individual's approach to their work, USPAP does not require appraisers to develop their own unique styles, focusing instead on compliance with established standards and ethical practices.