| Acronym | Meaning |
 | IRS | U.S. Internal Revenue Service |
| UFO | Unidentified Flying Object - United Farmers Of Ontario |
| LPG | Liquefied Petroleum Gas (cf. LNG) |
| RTLS | Return To Launch Site - Period In NASA Space Shuttle Assent Profile Where |
| FACA | (US) Federal Advisory Committee Act |
| ADIZ | Air Defence Identification Zone |
| EULA | End-User License Agreement (you-lah) |
| OCD | Obsessive-Compulsive Disorder |
| RRS | Racing Rules Of Sailing |
| CSRF | Cross-Site Request Forgery |
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