OAC
OAC can denote collaborative open‑annotation projects, community outreach groups like the Opportunity Awareness Center, the Oregon Arts Commission, a seasonal “Only at Christmas” tag, or an output audio codec.
Miscellaneous
Ordo Ab Chao
Ontario Advanced Credit
Outdoor Adventure Center
Open Annotation Collaboration
Opportunity Awareness Center
Oregon Arts Commission
Only At Christmas
Output Audio Codec
Oakland Airport Connector
Community
Outreach And Church
Outdoor Activities Camp
Outdoor Activities Committee
Obesity Action Coalition
Ontario Academic Credit
Overcome Any Challenge
Ontario Arts Council
Odyssey Adventure Club
Governmental
Office of Antiboycott Compliance
Ohio Administrative Code
Office of the Administrator for the Courts ( Washington)
Optical Area Correlator
Overseas Automotive Council
Academic & Science
Optical Absorption Coefficient
Objectivist Academic Center
Oceanographic Advisory Committee
Odd Auto-Correlation
Online Archive of California
Ontario Academic Credits
Computing
Business
Office of Anti-boycott Compliance
On Approved Credit
Operations Advisory Committee
Ontario Aerospace Council