| Abbreviation | Definition |
|---|---|
| ERS | Equipment Rules of Sailing |
| EUST | Eindhoven University Sailing Team |
| FFAI | Flying Fifteen Sailing in Ireland |
| GBSA | Greenwich Bay Sailing Association |
| GLSBC | Great Lakes Steel Boat Club (Ecorse, MI) |
| GOST | Global Offshore Sailing Team |
| GSS | Glover Sailing Ship |
| GWSC | Grafham Water Sailing Club |
| HHSA | Herrington Harbour Sailing Association |
| HISC | Hayling Island Sailing Club |
| HISC | Hillsboro Inlet Sailing Club |
| HRCS | Hudson River Community Sailing |
| HSCA | Hawaiian Sailing Canoe Association |
| HTSC | Harwich Town Sailing Club |
| ICSA | Inter Collegiate Sailing Association |
| IHCA | International Hansa Class Association |
| INSC | Irish National Sailing Club |
| IOCA | International Optimist Class Association (sailing) |
| IRO | International Race Officer |
| ISAF | International Sailing Federation |