| Acronym | Meaning |
 | HOV | High Occupancy Vehicle |
| RQ | Puerto Rico (FIPS 10-4 Territory Code) |
| IT | InferoTemporal (neurophysiology) - Information Technology -Italy (FIPS 10-4 Country Code; ISO 3166 Digram) |
| MSG | MonoSodium Glutamate |
| OLS | Operational Linescan System |
| ELF | Earth Liberation Front - Endangered Language Fund - Eritrean Liberation Front - Executable And Linkable Format - Extremely Low Frequency |
| FMCA | Federal Magistrates' Court Of Australia (used For Citing Decisions Of The FMC Other Than Family Law Decisions) |
| ISSN | International Standard Serial Number (ISO 3297) |
| APL | A Programming Language - Acute Promyeloid Leukaemia - Anti-Personnel Landmine - Applied Physics Laboratory (Johns Hopkins University) |
| APP | Allied Procedural Publication |
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