What does OPAC stand for?

Omnova Solutions Inc. PAC - Fairlawn, OH (PACS)

Online Patron Access Catalog (GIS)

On-line Payment and Collection System - Emergency Management (EMA)

Online Public Access Catalog - Silicon Valley Information Center - SVIC - San Jose, CA - Information service or system (IID)

Operation of Aircrafts (SAUS)

Operations Planning Advisory Committee (SAUS)

Optimized Policies for Adaptive Control - Traffic management

Overall Performance Appraisal Certification - Environmental Protection Agency (GFGA)

Resource Centre, School of Lanark County, Algonquin College of Applied Arts & Technology, Perth, Ontario - Library symbol - National Library of Canada (NLC)