(a) Except as otherwise provided in this Section, within 30 days after the beginning of each State fiscal year, each person who possessed a valid operating license issued by the NRC for a nuclear power reactor or a spent fuel storage facility during any portion of the previous fiscal year shall pay to the Agency the fees imposed by Section 4 of this Act. The one-time facility charge assessed pursuant to subparagraph (1) of Section 4 shall be paid to the Agency not less than 2 years prior to scheduled commencement of commercial operation. The additional facility charge assessed pursuant to subparagraph (2) of Section 4 shall be paid to the Department within 90 days of June 30, 1982. Fees assessed pursuant to subparagraph (3) of Section 4 for State fiscal year 1992 shall be payable as follows: $400,000 due on August 1, 1991, and $525,000 due on January 1, 1992. Fees assessed pursuant to subparagraph (3) of Section 4 for State fiscal years 1993 through 2011 shall be due and payable in two equal payments on July 1 and January 1 during the fiscal year in which the fee is due. For State fiscal year 2012 and subsequent fiscal years, fees shall be due and payable in 4 equal payments on July 1, October 1, January 1, and April 1 during the fiscal year in which the fee is due. Fees assessed pursuant to subparagraph (4) of Section 4 shall be paid in six payments, the first, in the amount of $400,000, shall be due and payable 30 days after the effective date of this Amendatory Act of 1984. Subsequent payments shall be in the amount of $200,000 each, and shall be due and payable annually on August 1, 1985 through August 1, 1989, inclusive. Fees assessed under the provisions of subparagraphs (6) and (7) of Section 4 of this Act shall be paid on or before January 1, 1990. Fees assessed under the provisions of subparagraphs (8) and (9) of Section 4 of this Act shall be paid on or before January 1st of each year, beginning January 1, 1990. Fees assessed under the provisions of subparagraphs (10) and (11) of Section 4 of this Act shall be paid to the Agency within 60 days after completion of such shipments within this State. Fees assessed pursuant to subparagraph (12) of Section 4 shall be paid to the Agency by each person who possessed a valid operating license issued by the NRC for a nuclear power reactor during any portion of the previous State fiscal year as follows: the fee due in fiscal year 1988 shall be paid on January 15, 1988, the fee due in fiscal year 1989 shall be paid on December 1, 1988, and subsequent fees shall be paid annually on December 1, 1989 through December 1, 1990.
     (b) Fees assessed pursuant to paragraph (3.5) of Section 4 for State fiscal years 1999 and 2000 shall be due and payable in 2 equal payments on July 1 and January 1 during the fiscal year in which the fee is due. The fee due on July 1, 1998 shall be payable on that date, or within 10 days after the effective date of this amendatory Act of 1998, whichever is later.
     (c) Any person who fails to pay a fee assessed under Section 4 of this Act within 90 days after the fee is payable is liable in a civil action for an amount not to exceed 4 times the amount assessed and not paid. The action shall be brought by the Attorney General at the request of the Agency. If the action involves a fixed facility in Illinois, the action shall be brought in the Circuit Court of the county in which the facility is located. If the action does not involve a fixed facility in Illinois, the action shall be brought in the Circuit Court of Sangamon County.