This report presents the results of our review of the misreporting of nonfat dry milk price and quantity data by a dairy firm and the subsequent ramifications. The incorrect data were aggregated with data from other firms and published by the National Agricultural Statistics Service (NASS) in its weekly Dairy Products Prices report. Once the data were published by NASS, they were utilized by AMS as a component in its formula for establishing federal milk marketing order (FMMO) prices. Given that incorrect nonfat dry milk prices were factored into the FMMO formula, AMS has stated that its published FMMO prices were incorrect. According to AMS, this caused the total value of milk to be understated by $50 million between April 29, 2006 and April 14, 2007.