(redirected from Ordinance on Air Pollution Control)
OAPCOntario Association of Paramedic Chiefs (formerly Association of Emergency Medical Services of Ontario; Ontario, Canada)
OAPCOntario Association of Patient Councils (Ontario, Canada)
OAPCOrdinance on Air Pollution Control (Switzerland)
OAPCOffice of Alien Property Custodian (est. 1942)
OAPCOhio Asphalt Paving Conference
OAPCOffice of AIDS Policy Coordination (New York City Department of Health and Mental Hygiene)
OAPCOpen Arms Pregnancy Center (DeWitt, IA)
OAPCOsteoporosis Action Plan Committee (Canada)