Managing Los Alamos legacy waste
Learn how we execute the Los Alamos Legacy Cleanup Contract safely and securely.
Who we are
We manage the 10-year, $2.1 billion Los Alamos Legacy Cleanup Contract for the U.S. Department of Energy Environmental Management Los Alamos Field Office.
What’s New?
Environmental Management Cleanup Forum 3/18/2026 READ MORE >
N3B Releases 2025 Community Commitment Annual Report READ MORE >
Updates on Hexavalent Chromium Campaign READ MORE >
Environmental Management Cleanup Forum 12/17/2025 READ MORE >
Los Alamos Provides Legacy Waste Program Updates at Public Forum READ MORE >
What we do
We clean up, package and ship radioactive and hazardous Los Alamos National Laboratory legacy waste
Land
Water
Waste
Work with us
We’re a diverse team of problem-solvers and innovators, united by our commitment to N3B’s vital mission of legacy waste cleanup and community enhancement.
Latest News
N3B employees inspire NM youth at Summer Physics Camp for Young Women
June 10, 2021 - LOS ALAMOS, N.M. — In hopes of educating and inspiring New Mexico’s youth to pursue STEM-related careers that benefit their...
LANL Individual Permit status meeting scheduled for June 16
June 9, 2021 - LOS ALAMOS, N.M. — The Department of Energy’s Environmental Management Los Alamos Field Office (EM-LA) and its cleanup contractor Newport...
N3B diverts nearly five tons of plastic from landfill through recycling initiative
May 12, 2021 - LOS ALAMOS, N.M. — As part of a new recycling initiative, Newport News Nuclear BWXT Los Alamos (N3B) diverted nearly...