Before revision: In 2015, it was merged with the National Geophysical Data Center (NGDC) and the National Oceanic Data Center (NODC) into the National Centers for Environmental Information (NCEI).
After revision: In 2015, it was merged with the National Geophysical Data Center (NGDC) and the National Oceanographic Data Center (NODC) into the National Centers for Environmental Information (NCEI).