| Rank | Abbreviation | Meaning |
|---|
| ***** | PEIS | PHIVOLCS (Philippines Institute of Volcanology and Seismology) Earthquake Intensity Scale
| |
| *** | PEIS | Programmatic Environment Impact Statement
| |
| *** | PEIS | Preliminary Environmental Impact Study
| |
| *** | PEIS | Political Economy of Industrial Societies
| |
| ** | PEIS | Program Evaluation and Improvement Staff
| |
| ** | PEIS | PANEL Environmental Impact Statement
| |
| * | PEIS | Programatic Environmental Impact Statement
| |
| * | PEIS | Polyethylenimines
| |
| * | PEIS | Particulate Emissions Information System
| |
| * | PEIS | Prototype Engineering Information System
| |
| * | PEIS | Paravariceal Endoscopic Injection Sclerotherapy
| |
| * | PEIS | Post-Experiment Information System
| |
| * | PEIS | Preliminary Engineering Inspection
| |
| * | PEIS | Permanent Ice and Snow
| |
| * | PEIS | Payroll Employee Information Services
| |