What compact privilege is
A multistate license from your primary state of residence carries compact privilege — the authority to practice in other compact states without licensing separately in each. It only exists between states that are live in the Nurse Licensure Compact.
Why privilege does not reach Illinois
Since Illinois is not part of the compact, there is no Illinois compact privilege to grant. See non-compact states and working in a non-compact state with a compact license.
The law that governs this in Illinois
Working in Illinois on another state’s license is practice in Illinois, so it is Illinois’s own nurse practice act that defines what you may do and the Illinois Board of Nursing (IDFPR) that applies it. That act is 225 ILCS 65 (Nurse Practice Act).
There is no compact statute to cite for Illinois, which is the substantive point rather than a gap in our research: Illinois has not adopted the compact, so the practice act above is the whole of the law that applies to you here.
Confirm before you rely on it
License status changes and the compact evolves. Confirm your own license type on Nursys and check Illinois’s current rules with the Illinois Board of Nursing (IDFPR). CompactStates.com is an independent guide, not a licensing authority.
Why compact privilege does not reach Illinois
Illinois has not adopted the compact. Either way the practical answer for working in Illinois on a license from another state is the same today: a multistate license from another state does not authorize it, and you generally need an Illinois license from the Illinois Board of Nursing (IDFPR). Re-check before a start date rather than assuming — this is precisely the fact that changes.