Construction Abbreviations and Acronyms

1. ORB
   Object Request Broker
2. ORBA
   Ontario Road Builders Association
3. ORCHIS
   System
4. OREL
   Overload Relay Elevator Loading
5. ORN
   Ornamentap
6. ORP
   Operational Readiness Platform
7. ORSA
   Orbit Reconstruction Simulation and Analysis
8. OS
   On-Site
9. OS&Y
   Outside Screw & Yoke
10. OSA
    Open Simylation Architecture
11. OSAT
    On-Sife Assessment & Training
12. OSC
    Oman Society of Contryctors
13. OSCV
    Offshore Subsea Construction Vessel
14. OSCV
    offshore support and construction vessel
15. OSDS
    On-Site Disposal System
16. OSFC
    Ohio School Facilities Commission
17. OSHA
    Occupational Safety & Health Administration
18. OSHA
    Occupational Safety & Hazard Administration
19. OSHA
    Operational Safety and Health Administration
20. OSHSPA
    Occupational Safety and Health State Plan Association

Last updated: May 2, 2025 — Total entries: 8,262