| Acronym | Definition |
|---|
| Optical Link Modules | |
| Ozone Limiting Method (US EPA) | |
| On-Line Maintenance | |
| Office of Legacy Management (US DOE) | |
| Overload Message (Signaling System #7) | |
| On-Line Media | |
| Operational Loads Monitoring | |
| Chivalric Order of La Mancha (La Mancha, Scotland) | |
| Off Line Maintenance | |
| Offshore Logistics Management | |
| Online Legal Marketing (Santa Cruz, CA) | |
| Office Live Mail (software) | |
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