Notes:
A group of organizations and a resident challenged a plan by the Federal Aviation Administration (FAA) and the National Park Service (NPS) regulating tourist flights over four national parks near San Francisco. The agencies determined that no environmental analysis was needed under the National Environmental Policy Act (NEPA) because the plan would cause minimal additional environmental impact compared to existing conditions.
The U.S. Court of Appeals for the District of Columbia Circuit reviewed the case. The court noted that the agencies had previously announced their intent to prepare an environmental assessment but later terminated that process. The agencies then decided to use the existing number of flights as the baseline for their environmental analysis, concluding that the plan would have no significant environmental impact.
The court held that the agencies acted arbitrarily by using the existing flights under interim operating authority as the baseline for their NEPA analysis. This approach effectively enshrined the status quo without evaluating the environmental impacts of the existing flights. The court found that the agencies’ reliance on interim operating authority as the baseline was unreasonable and contrary to their duties under the National Parks Air Tour Management Act and NEPA.
The court vacated the FAA’s order and remanded the case for further proceedings, instructing the agencies to conduct a proper NEPA analysis. The court also noted that the agencies could move for a stay of the mandate if they wished to keep the current plan in place while conducting the new analysis.
