Rent estimates at the 50th percentile (or median) are calculated for all Fair Market Rent areas. THESE ARE NOT FAIR MARKET RENTS. Under certain conditions, as set forth in the Interim Rule (Federal Register Vol. 65, No. 191, Monday October 2, 2000, pages 58870-58875), these 50th percentile rents can be used to set success rate payment standards. Click here for information on Fair Market Rents.