According to USPAP, when must a written summary of an oral report be added to the workfile?

The correct answer highlights the requirement set forth by the Uniform Standards of Professional Appraisal Practice (USPAP) regarding the documentation of oral reports. USPAP specifies that any written summary of an oral report must be added to the workfile within a reasonable time after the oral report is issued. This requirement ensures that all relevant information is adequately documented and maintained in case it needs to be reviewed or referenced in the future.

Having a written summary helps uphold the standards of transparency and accountability, enabling appraisers to provide a comprehensive record of their appraisal process. It contributes to the overall integrity of the appraisal practice by allowing for continuity and clarity in communication.

The other choices suggest either an inappropriate timeframe or an assumption that a summary isn't necessary at all, which contradicts the requirements laid out by USPAP. By clearly understanding and adhering to the prescribed timeline, appraisers can fulfill their obligations to the profession and their clients effectively.