The final approval authority for system-related National Environmental Policy Act (NEPA) documentation is the?

The final approval authority for system-related National Environmental Policy Act (NEPA) documentation typically lies with the lead federal agency responsible for the proposed action. This agency is tasked with ensuring compliance with NEPA requirements, including the preparation and review of environmental assessments or environmental impact statements. Ultimately, the agency head or designated official will provide the final approval of the NEPA documentation.