215 ILCS 5/174.1
No domestic stock company with less than $5,000,000 capital and surplus nor domestic mutual or reciprocal company with less than $5,000,000 surplus may assume as reinsurance any of the kind or kinds of businesses enumerated in Class 2 or Class 3 of Section 4 of this Code, except Class 2(a), and except for facultative reinsurance of specific risks and assumption of risks from companies subject to "An Act relating to local, mutual district, county and township insurance companies", approved March 13, 1936, as amended. If approval of the Director is obtained prior to the reinsurance assumption, this prohibition shall not apply to any company organized and authorized to do business in Illinois between July 1, 1981, and June 30, 1983, until January 1, 1989.
215 ILCS 5/174.1