An Illinois notary public is authorized to perform notarial acts or “notarization” anywhere in the state. Notarial acts include taking an acknowledgement, taking a verification upon oath or affirmation, witnessing or attesting a signature, administering an oath or affirmation, and performing any other act authorized by law.
A notary public must positively identify the person requesting notarization. A notary has positive identification if the person:

• is personally known to the notary
• is identified upon the oath or affirmation of a credible witness personally know to the notary
• is identified on the basis of identification documents