Effects Analysis

Incorporating Biodiversity Considerations into Environmental Impact Analysis Under NEPA outlines general concepts that underlie biological diversity analysis and management, describes how biodiversity has historically been addressed under NEPA, and discusses methods for considering biodiversity in current and future NEPA analyses.

Considering Cumulative Effects Under the National Environmental Policy Act is intended to assist Federal agencies with analyzing cumulative effects during the NEPA process. It outlines general principles, common cumulative effects assessment methodologies, and resources for additional information and background data.

Council on Environmental Quality Guidance on NEPA Analyses for Transboundary Impacts

In this Memorandum, CEQ provided guidance on the extent to which agencies of the Federal government are required to analyze the environmental effects of past actions when they describe the cumulative environmental effect of a proposed action in accordance with Section 102 of the National Environmental Policy Act (NEPA), 42 U.S.C. § 4332, and the prior CEQ Regulations for Implementing the Procedural Provisions of NEPA, 40 C.F.R. parts 1500-1508.

This memorandum to Federal agencies with international activities initiates the consultation process required by Executive Order 12114 on Environmental Effects Abroad.

Memorandum for Heads of Departments and Agencies: Notifications for Actions with Potential Transboundary Effects in Canada