Obviously, the 1004 form asks for 1 year sale history for comps. However, I remember hearing that a 3 year sale history of comps is required. Is a 3 year sales history of comps required? Is this a guidline, a rule, or an aberration of my hazy memory. Perhaps USPAP visited me in a nightmare and told me to do a 3 year sales history on comps. I hate when that happens.