EIR is circulated through the State Clearinghouse, then the public comment period must be 45 days minimum. The lead agency must prepare a final EIR before approving the project. The contents of a final EIR are specified in §15132 of the CEQA guidelines, but responses to draft EIR comments are the focus of the document. The lead agency then certifies the final EIR and issues its findings. Should significant and unavoidable impacts remain after mitigation, a Statement of Overriding Considerations must be prepared. Finally, the lead agency may decide whether or how to approve or carry out the project at which time a notice of determination (NOD) must be filed within five days of approval. Appeal periods and litigation avenues remain after the NOD. Comparisons to similar laws Similar laws at the federal and state levels require environmental impact analysis before commencing major projects. National Environmental Policy Act NEPA, a United States federal statute passed the year before CEQA, is similar to CEQA in that both statutes set forth a policy of environmental protection, and a protocol by which all agencies in their respective jurisdictions make environmental protection part of their decision making process. NEPA is narrower in scope than CEQA. NEPA applies only to projects receiving federal funding or approval by federal agencies, while CEQA applies to projects receiving any form of state or local approval, permit, or oversight. Thus, development projects in California funded only by private sources and not requiring approval by a federal agency would be exempt from NEPA, but would likely be subject to CEQA. The environmental impact statement (EIS) required under NEPA and the EIR required under CEQA are similar documents, yet have some crucial differences. For example, under NEPA, an agency can list all reasonable alternatives and their impacts, then choose their preferred project without regard to the severity of its impacts, even if it is more harmful to the environment. Under CEQA, the lead agency is required to mitigate all "significant" adverse environmental impacts to "the maximum extent feasible" and can approve a project only if the agency adopts a Statement of Overriding Considerations detailing the specific overriding economic, legal, social, technological, or other considerations that outweigh the project's significant, unavoidable impacts. If a major federal project, or project using federal funds is seeking approval in California, its lead agency must prepare both an EIS and an EIR, but both can be