Abbreviations beginning with a

ARPSAutomated Records Processing System
Governmental

ARPSAssociate of the Royal Photographic Society
Miscellaneous

ARPSAssociation of Railway Preservation Societies
Miscellaneous

ARPSAuction Rate Preferred Shares
Miscellaneous » Unclassified

ARPSAuction Rate Preferred Stock
Miscellaneous » Unclassified

ARPSAverage Revenue Per Subscriber
Miscellaneous

ARPSAborigines' Rights Protection Society
Regional » Ghana

ARPSAdirondack Railway Preservation Society
Regional » Railroads

ARPSAmherst Regional Public Schools
Regional

ARPSAdvanced Role Playing System
Sports

ARPSCAmateur Radio Public Service Corps
Miscellaneous

ARPSCArlington Radio Public Service Club (Arlington, VA)
Miscellaneous

ARPTAccess Region Prediction Table
Academic & Science

ARPTAcid Reflux Provocation Test (surgery)
Academic & Science

ARPTAdenine Phosphoribosyltransferase
Academic & Science

ARPTAnnual Residential Property Tax
Business » Tax

ARPTAutorité de régulation des postes et télécommunications
Computing » Telecom

ARPTAdaptive Research Planning Teams
Governmental » Planning

ARPTAnnual Residential Property Tax
Miscellaneous » Unclassified