Environmental Impact Report
A report required of general plans by the California Environmental Quality Act (CEQA) and which assesses all the environmental characteristics of an area and determines what effects or impacts will result if the area is altered or disturbed by a proposed action. It must assess potential adverse impacts upon the environment, measures that may avoid or reduce these impacts (mitigation measures), and alternatives to the plan. (See California Environmental Quality Act.) An EIR is also conducted for proposed projects.