Coal production data systems validation. Final report. [USA; coal production data]

This report presents an evaluation of the EIA-7A coal production system along with specific recommendations to streamline system operations and increase data accuracy. The report addresses four major areas of system operations. These areas are: survey frame maintenance, survey nonresponse, survey edit procedures (both manual and automated) and survey data accuracy and cycle duration. Within each area, specific problems or considerations are discussed and potential system changes are presented. In addition, an executive summary is provided at the beginning of the report which summarizes the major findings of the validation project and the major recommendations needed to achieve validation objectives. It is important to recognize that this document is not the singular result of the validation project but rather it represents the culmination of a series of specific reports which treat each of these areas in-depth. A listing of each project deliverable is available at the end of the field report for the reader's convenience.