Upon the expiration of 120 days after the date on which a notice of proposed assessment was issued, the penalties specified therein shall be deemed assessed, unless the employer had filed a protest with the Department under subsection (c) of this Section or come into full compliance with the Program as required under Section 60 of this Act.
If, within 120 days after the date on which it was issued, a protest of a notice of proposed assessment is filed under subsection (c) of this Section, the penalties specified therein shall be deemed assessed upon the date when the decision of the Department with respect to the protest becomes final.
820 ILCS 80/85