The Council on Environmental Quality is issuing its final guidance on Improving the Process for Preparing Efficient and Timely Environmental Reviews under the National Environmental Policy Act. The National Environmental Policy Act (NEPA) and CEQ Regulations implementing NEPA provide numerous techniques for preparing efficient and timely environmental reviews. CEQ is issuing this guidance for Federal departments and agencies to emphasize and clarify that these techniques are available for all NEPA Environmental Assessments and Environmental Impact Statements.