Earlier this month, the Appraiser Qualifications Board (AQB) released a white paper with independent research exploring whether qualifying education courses and an exam could augment existing federal requirements to become an appraiser. 

According to the AQB, the white paper, " ... brings together findings from the published research literature on professional licensing and assessment, the federal statutory and regulatory record applicable to appraiser licensing in the United States, and the publicly available regulatory frameworks of comparable licensed professions."

This is being released in preparation of the next exposure draft, which may propose changes to the current requirements. Read the white paper.