| SIPP | Self Invested Personal Pension 
| Others |
| SIPP | Self Invested Personal Pensions
| Others |
| SIPP | Self-Invested Pension Plan
| Others |
| SIPP | Self-Invested Personal Pension
| Others |
| SIPP | Seriessurvey Of Income And Program Participation
| Others |
| SIPP | Simple Internet Protocol Plus
| Others |
| SIPP | Simple Polygone Processor
| Others |
| SIPP | Single In-line Pin Package
| Others |
| SIPP | Single Inline Pinned Package
| Others |
| SIPP | Sippsurvey Of Income And Program Participation
| Others |
| SIPP | Small Item Payment Procurement
| Others |
| SIPP | Southern Illinois People and Places
| Others |
| SIPP | Stable Image Platform Program
| Others |
| SIPP | Standard Interline Passenger Procedure
| Others |
| SIPP | Staten Island Physician Practice
| Others |
| SIPP | Statewide Inpatient Psychiatric Program
| Others |
| SIPP | Stitute In Political Psychology
| Others |
| SIPP | Strategic Injury Prevention Partnership
| Others |
| SIPP | Structure of Interactive Psycho Philosophy
| Others |
| SIPP | Student Installment Payment Plan
| Others |
| SIPP | Summer Immersion Program in Philosophy
| Others |
| SIPP | Summer Institute in Political Psychology
| Others |
| SIPP | Survey Of Income And Program Participation
| Others |
| SIPP | Sustainable Infrastructure Planning Projects
| Others |