| Abbreviation | Definition |
|---|---|
| ISP | Information Systems Professional |
| ISR | Inside Sales Representative |
| IST | Instructional Support Teacher |
| ITA | International Teaching Assistant |
| ITAS | Information Technology Applications Specialist |
| ITEM | Information Technology Equipment Manager |
| ITO | International Thespian Officer |
| ITP | Information Technology Professional |
| ITSA | Information Technology Support Associate |
| ITSE | Information Technology Systems Engineer |
| IVA | Individual Voluntary Agreement |
| IVO | Intelligent Valve Operator |
| IW | Industrial Worker |
| JA | Jedi Apprentice |
| JA | Job Ability |
| JA | Judicial Administrator |
| JA | Junior Assistant |
| JAE | Junior Account Executive |
| JAG | Jobs For Arizona Graduates |
| JAM | Just Another Messenger |