National environmental policy act and its implementation--Planning and management of impact studies--Simple methods for impact identification-matrices, networks, and checklists--Description of environmental setting (affected environment)--Environmental indices and indices and indicators for describing the affected environment--Prediction and assessment of impacts on the air environment--Prediction and assessment of impacts on the surface-water environment--Prediction and assessment of impacts on the soil and groundwater environments--Prediction and assessment of impacts on the noise environment--Prediction and assessment of impacts on the biological environment--Habitat-based methods for biological-impact prediction and assessment--Prediction and assessment of impacts on the cultural (architectural, historical, and archaeological) environment--Prediction and assessment of visual impacts--Prediction and assessment of impacts on the socioeconomic environment--Decision methods for evaluation of alternatives--Public participation in environmental decision making--Preparation of written documentation--Environmental monitoring