| Acronym | Meaning |
 | SERC | Smithsonian Environmental Research Center |
 | NTP | National Toxicology Program |
 | HAB | HIV/AIDS Bureau |
 | MAC | Market Access And Compliance |
 | FIPS | Federal Information Processing Standard |
 | CONSER | Cooperative Online Serials |
 | EREN | Energy Efficiency And Renewable Energy Network |
 | NBL | New Brunswick Laboratory |
 | NEIC | National Earthquake Information Center |
 | IO | Bureau Of International Organization Affairs |