OCA
OCA can refer to the Open Control Architecture used in automation, an off‑campus academic advisor, the military term Offensive Counter‑Air, a network of orthodontic clinics, or a case‑agency identification number.
Medical
Miscellaneous
Oxford Capacity Analysis
The Open Coloring Axiom
Our Common Aim
Observability Codistribution Algorithm
Ottawa Construction Association
Obstacle Clearance Altitude
Oracle Contributor Agreement
Open Coloring Axiom
Olympic Cascade Aquatics
Office of Consumer Affairs
Community
Organization of Chinese Americans
Occupational Chaplains of America
Orthodox Church in America
Ohio Counseling Association
Ohio Cichlid Association
Orthodox Church in
Organisation Classification and Association
Organic Consumers Association
Odoo Community Association
Governmental
Offensive Counter Air
Originating Case Agency Number
Originating Case Agency
Offensive Counterair
Operational Control Authority
Office of Court Administration
Open Content Alliance
Academic & Science
Regional
Computing
Business
Orthodontic Centers of America, Inc.
Open Checking Account
Ohio Collectors Association
Ohio Contractors Association
Oracle certified Associate