730 ILCS 5/5-4.5-10: OFFENSE CLASSIFICATIONS.

(a) FELONY CLASSIFICATIONS. Felonies are classified, for the purpose of sentencing, as follows:

(1) First degree murder (as a separate class of felony).

(2) Class X felonies.

(3) Class 1 felonies.

(4) Class 2 felonies.

(5) Class 3 felonies.

(6) Class 4 felonies.

(b) MISDEMEANOR CLASSIFICATIONS. Misdemeanors are classified, for the purpose of sentencing, as follows:

(1) Class A misdemeanors.

(2) Class B misdemeanors.

(3) Class C misdemeanors.

(c) PETTY AND BUSINESS OFFENSES. Petty offenses and business offenses are not classified.