The Improper Payments Information Act of 2002 (Public Law 107-300, or IPIA) requires all Federal agencies to identify programs and activities that may be susceptible to erroneous payments and to annually estimate and report to Congress the value of erroneous payments. This assessment examines the accuracy of the classification of Family Day Care Homes (FDCHs) participating in the U.S. Department of Agriculture's (USDA) Child and Adult Care Food Program (CACFP) for 48 contiguous continental states (i.e., excluding AK and HI) and DC -- hereafter, nationwide or national means this limited coverage area. The assessment provides estimates for Program Year (PY) 2013 of the number of FDCHs misclassified by sponsoring agencies into the wrong tier, and the resulting erroneous payments for meals and snacks reimbursed at the wrong rate. The assessment does not attempt to measure other types of erroneous payments in the CACFP, such as meal claiming errors by FDCHs. (author abstract)