| Acronym | Meaning |
| NCRDS | National Coal Resources Data System |
| COC | Chain Of Custody |
| LEEP | Low-energy Solvent Extraction Process |
| PCOP | Positron Correlation Polarization (potential) |
| ICSS | Isobaric Crystallization From Supercritical Solution |
| EMZDO | Exchange Modified Zero Differential Overlap |
| ABRF | Association Of Biomolecular Resource Facilities |
| EPACML | Environmental Protection Agency's Composite Landfill Model |
| VLP | Virus-like Particle |
| PSHF | Pseudospectral Hartree-Fock |