| Abbreviation | Definition |
|---|---|
| IEA | International Engineering Alliance |
| IEPC | International Engineering Procurement and Construction |
| IETC | Innovative Electrical Testing Construction |
| IFAC | International Festival Of Art And Construction |
| IFB | Insulating Fire Brick |
| IFD | Issued For Design |
| IFDC | International Facade Design and Construction |
| IFGT | Indrectly Fired Gas Turbine |
| IFS | Intumescent Fire Strip |
| IGA | Investment Grade Audit |
| IGMP | Initial Guaranteed Maximum Price |
| IGU | Insulated Glass Unit |
| IHC | Interstate Highway Construction |
| IIRP | Iraq Infrastructure Reconstruction Program |
| IIRP | Iraq Infrastructure Reconstruction Programme |
| IJCE | International Journal Of Construction Engineering |
| IJSC | International Journal of Sustainable Construction |
| ILS | Intense Lighting System |
| IMACC | Independent Mitigation And Cleaning/Conservation |
| IMC | In Mold Cutting |