| Abbreviation | Definition |
|---|---|
| ICWA | Icwaindian Child Welfare Act |
| ICWA | Indian Child Welfare Act |
| IDEA | Ith Disabilities Education Act |
| IDLNY | Interior Design Legislation of New York |
| IEPA | Inter Ethnic Placement Act |
| IEPD | Information Exchange Package Documentation |
| IF | If Fitted |
| IFCA | Insurance Fair Conduct Act |
| IFST | International Food Security Treaty |
| ILDI | International Legislative Drafting Institute |
| INA | Immigration and Nationality Act |
| INA | Immigration and Naturalization Act |
| INVEST | Investing in a New Vision for the Environment and Surface Transportation |
| INXN | Injunction |
| IRB | Immigration and Refugee Board (of Canada) |
| IRCA | Immigration Reform And Control Act |
| IRPA | Immigration and Refugee Protection Act |
| ISDS | Investor-State Dispute Settlement |
| ISLB | Illinois State Legislative Board |
| ISRA | Industrial Site Recovery Act |