| Acronym | Definition |
|---|
| PIWG➣Propulsion Instrumentation Working Group (test instrumentation and sensor technology) |
| PIWG➣Product Improvement Working Group |
| PIWG➣Pilot Implementation Working Group |
| PIWG➣Performance Indicators Working Group (UK Office of the Deputy Prime Minister Fire and Rescue improvement program) |
| PIWG➣Performance Interface Working Group |
| PIWG➣Platform Integration Working Group |
| PIWG➣Performance Issues Working Group of ACM SIGAda |
| PIWG➣Product Integration Working Group |
| PIWG➣Performance Indicator Workgroup (Washington State Department of Social and Health Services) |
| PIWG➣Public Involvement Workgroup (Clackamas County, Oregon) |
| PIWG➣Proton Intensity Working Group (nuclear physics) |
| PIWG➣Parlay Industry Working Group |
| PIWG➣Partnering Implementation Working Group (UK) |