All data compiled in this report originated from either census questionnaires or administrative records of other Federal agencies and, therefore, are not subject to sampling errors. However, the data are subject to nonsampling errors. The accuracy of these tabulated data is determined by the joint effects of the various nonsampling errors. The Census Bureau obtains on computer tape limited information extracted from administrative records of other Federal agencies. This information is used in conjunction with other information available to the Census Bureau to develop estimates for nonemployers, small employers, and other establishments for which responses were not received in time for publication.
Special tabulations are prepared on a cost basis.
A request for a cost estimate, as well as exact specifications on the type and format of the data to be provided, should be directed to the Chief, Services Division, Bureau of the Census, Washington, D.C. 20233.