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National Environmental Policy Act

The National Environmental Policy Act (NEPA) is a procedural statute that seeks to protect and enhance the quality of the human environment by integrating environmental considerations into the planning of NASA actions as early as possible. ensuring that environment, technical, and economic considerations are weighed during decision making, and completing the NEPA process before taking action.

Image of earth from a former NEPA presentation

Snowy mountain backdrop behind NASA facility

About NEPA

The waxing gibbous Moon is pictured from the International Space Station as it orbited 259 miles above the Pacific Ocean off the coast of north California.

NEPA Public Reviews

Photo of MSFC library

NEPA Library

Hands joining in unity in a circle

Environmental Justice


Updates to NEPA Rules

NASA NEPA Network and Cultural Resource Network at the Annual N3 Meeting at Michoud Assembly Facility


Patches on astronauts shoulders from many different countries

International Programs

RPS Image

Space Nuclear-System Enabled Missions