What does PIRA stand for?

Paper Industries Research Association (NADA)

Petroleum Industry Research Associates (USDOE)

Photographic Instrument Repairing Associates - British (DBA)

Positive Identification and Radar Advisory (SAUS)

Printing and Packaging Industries Research Association (SAUS)

Printing and Packaging Research Association

Printing Industry Research Association (NADA)

Prison Industries Reorganization Administration - Terminated, 1940

Provisional Irish Republican Army

Public Information Resources Administration

Research Association for the Paper and Board, Printing and Packaging Industries - Research center (IRC)