(September 8, 2025)

The U.S. Department of Energy’s National Nuclear Security Administration (NNSA) and the Department of Health and Human Services’ Centers for Medicare & Medicaid Services (CMS) are announcing new actions to support domestic production of the vital medical isotope molybdenum-99 (Mo-99).

“We’ve spent years working with U.S. companies to reshore Mo-99 production using advanced technology that doesn’t require weapons-usable nuclear material,” said Kasia Mendelsohn, NNSA’s Acting Deputy Administrator for Defense Nuclear Nonproliferation. “But NNSA hasn’t been alone in its efforts. Other agencies and departments are a big part of aiding the rebirth of this innovative U.S. industry.”