Illinois offers the opportunity for teachers from out-of-state to qualify for Illinois teaching certification through reciprocity agreements. You will need to have completed an approved teacher education program and/or currently hold a valid teaching certification from another state at the time of your application for Illinois licensure. For more information about the process of becoming certified as an out-of-state teacher, explore the Illinois State Board of Education's website, or call 866-262-6663.
The following are member states of the NASDTEC Interstate Agreement who have signed reciprocity agreements with Illinois.
| Alabama | Kansas | New Hampshire | South Dakota |
| Arizona | Kentucky | New Jersey | Tennessee |
| Arkansas | Louisiana | New Mexico | Texas |
| California | Maine | New York | Utah |
| Colorado | Maryland | North Carolina | Vermont |
| Connecticut | Massachusetts | North Dakota | Virginia |
| Delaware | Michigan | Ohio | Washington |
| Florida | Mississippi | Oklahoma | West Virginia |
| Georgia | Missouri | Oregon | Wisconsin |
| Hawaii | Montana | Pennsylvania | Wyoming |
| Idaho | Nebraska | Rhode Island | |
| Indiana | Nevada | South Carolina |