OTA
OTA most frequently denotes online travel agencies or agents that sell trips via the internet, but the same letters also describe over‑the‑air wireless updates and the occupational therapy assistant role in healthcare.
Medical
Miscellaneous
Obedience Trials Association
Oxford Text Archive
Office of the Tenant Advocate
Office of Technical Assistance
Optional Taco Accessories
Optical Trapping Applications
Community
Office of Internal Administration
One To All
Orthopaedic Trauma Association
Ohio Trucking Association
Oregon Trucking Association
Oregon Truck Associations
Oregon Trucking Associations
Governmental
Office of Technology Assessment
One True Army
Office of Tax Analysis
Officer Traning Academy (of India)
Optical Telescope Assembly
On-Time Arrival
Oklahoma Turnpike Authority
Online Trust Alliance
Academic & Science
Regional
Computing
Open Tools API (Application Programming Interface)
Operational Transconductance Amplifier
Over The Air
Office of Technology Alliances
Origin Technology Age
Business
Optical Tube Assembly
Open Travel Alliance
Organic Trade Association
Ontario Trucking Association
Orthodontic Technicians Association
Online Travel Agent
Online Travel Agency
Online Travel Agents