Check your state law...
example of state law/regulations:
18 VAC 130-20-10. Definitions
"Certified general real estate appraiser" means an individual who meets the requirements for licensure that relate to the appraisal of all types of real estate and real property and is licensed as a certified general real estate appraiser.
"Certified residential real estate appraiser" means an individual who meets the requirements for licensure for the appraisal of or the review appraisal of any residential real estate or real property of one to four residential units regardless of transaction value or complexity. Certified residential real estate appraisers may also appraise or provide a review appraisal of nonresidential properties with a transaction value or market value as defined by the Uniform Standards of Professional Appraisal Practice up to $250,000, whichever is the lesser.
"Licensed residential real estate appraiser" means an individual who meets the requirements for licensure for the appraisal of or the review appraisal of any noncomplex, residential real estate or real property of one-to-four residential units, including federally related transactions, where the transaction value or market value as defined by the Uniform Standards of Professional Appraisal Practice is less than $1 million, and complex one-to-four residential units having a transaction value less than $400,000. Licensed residential real estate appraisers may also appraise or provide a review appraisal of noncomplex, nonresidential properties with a transaction value or market value as defined by the Uniform Standards of Professional Appraisal Practice up to $250,000, whichever is the lesser.