| Acronym | Meaning |
| ALC | Allocations |
| BIATEX | Part Of EUROTRAC |
| IRAC | Interdepartmental Radio Advisory Committee |
| CCCMA | Canadian Centre For Climate Modeling And Analysis |
| NSBF | National Scientific Balloon Facility |
| MPDATA | Multidimensional Positive Definite Advection Algorithm |
| AIRS | Advanced Inertial Reference Sphere |
| WMO | World Meteorological Organization |
| RTN | Regional Telecommunications Network |
| MAR | Modernization And Associated Restructing |