- Immigration and Nationality Act (1952)
- Immigration Reform and Control Act of 1986
- Indian Civil Rights Act (1968)
- Indian Gaming Regulatory Act (1988)
- Indian General Allotment Act (Dawes Act) (1887)
- Indian Removal Act (1830)
- Indian Reorganization Act of 1934
- Individuals with Disabilities Education Act (1975)
- Internal Improvements Acts
- Internal Revenue Act of 1954
- International Emergency Economic Powers Act (1977)
- Interstate Commerce Act of 1887
