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The U.S. Army Corps of Engineers has been evaluating contractor quality control laboratories, commercial laboratories being used by either the corps of engineers or its contractors, and government quality assurance laboratories for a quarter of a century. All of the corps division laboratories (New England, Ohio River, South Atlantic, Missouri River, Southwest, North Pacific, South Pacific, and the Waterways Experiment Station, acting as the division laboratory for the Lower Mississippi Valley Division) are evaluated by the Cement and Concrete Reference Laboratory sponsored by ASTM Committees C-1 on Cement and C-9 on Concrete and Concrete Aggregates and located at the National Bureau of Standards. In turn, representatives of these division laboratories evaluate the above-mentioned laboratories being used by construction contractors for quality control at corps projects. In addition, corps government quality assurance laboratories normally located at project sites are evaluated to verify that the procedures being used by government technicians and engineers comply with the specified standards. The Corps of Engineers Laboratory Evaluation Program does not certify; it only evaluates to verify that the capability exists, that the laboratory employees know how to perform, and that the necessary facilities and laboratory equipment are available to permit the performance of the tests and inspections correctly.
certification, inspection, laboratory, project, quality assurance, quality control, verification
Chief, Concrete Technology Division, Structures Laboratory, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss.
Chief, Concrete Section, Structures Branch, Civil Works Directorate, Office of the Chief of Engineers, Washington, D.C.