Data collection activities performed for the Risk Reduction Engineering Laboratory (RREL) of the U.S. Environmental Protection Agency are divided into four categories, depending on the intended use of the data. Quality Assurance (QA) Project Plans are written to ensure that project needs will be met and that quality control procedures are sufficient for obtaining data of known quality. The level of QA required, however, depends on the project category selected for a given project. Projects that produce results for the purpose of evaluating and selecting basic options, or performing feasibility studies or preliminary assessments of unexplored areas which might lead to further work are identified as Category III projects. To assist professional scientists and engineers in preparing QA Project Plans, separate guidance manuals in an easy-to-read format have been developed for each category. The Category III manual contains detailed descriptions of each of the 11 required elements of a Category III QA Project Plan. Also included are definitions and explanations of frequently used terms, examples of QA forms and charts, sample equations and numerous types of tables suggested for summarizing information.

Shipping list no.: 91-282-P. "February 1991." Includes bibliographical references (page 57). "EPA/600/8-91/005."