The Data Reporting Guideline (DRG) for Aerobic Soil Metabolism Studies, Series 162-1, gives guidance to pesticide registrants on the format for their study report so that the Agency can review it efficiently. This guidance clarifies sections in the existing Pesticides Assessment Guidelines, Subdivision N, on data reporting. It provides an outline for the study report and describes the topics which should be addressed such as characteristics of the soil used, method of maintaining temperature, darkness, and moisture, history of pesticide treatment, the equipment, experimental design, analytical method, description of the handling and analysis of samples and provides guidance on the presentation of the results of the study. Data submitters can use the DRG in preparing their reports for submission to EPA to meet 40 CFR 158 requirements for the registration of pesticides.