105 ILCS 5/3A-18
To employ, in counties or regions of 2,000,000 inhabitants or less, in addition to any assistants authorized to be employed with the approval of the county board, an assistant regional superintendent of schools who shall be a person of good attainment, versed in the principles and methods of education, and qualified to teach and supervise schools under Article 21 of this Act; to fix the term of such assistant and direct his work and define his duties. On the effective date of this amendatory Act of the 96th General Assembly, in regions established within that portion of a Class II county school unit outside of a city of 500,000 or more inhabitants, the employment of all persons serving as assistant county or regional superintendents of schools is terminated, the position of assistant regional superintendent of schools in each such region is abolished, and this Section shall, beginning on the effective date of this amendatory Act of the 96th General Assembly, have no further application in the educational service region. Assistant regional superintendents shall each be a person of good attainment, versed in the principles and methods of education, and qualified to teach and supervise schools under Article 21 of this Act. The work of such assistant regional superintendent shall be so arranged and directed that the county or regional superintendent and assistant superintendent, together, shall devote an amount of time during the school year, equal to at least the full time of one individual, to the supervision of schools and of teaching in the schools of the county.
A regional superintendent of schools shall not employ his or her spouse, child, stepchild, or relative as an assistant regional superintendent of schools. By September 1 each year, a regional superintendent shall certify to the State Board of Education that he or she has complied with this paragraph. If the State Board of Education becomes aware of the fact that a regional superintendent is employing his or her spouse, child, stepchild, or relative as an assistant regional superintendent, the State Board of Education shall report this information to the Governor and the Comptroller, and the State Board of Education shall not request for payment from the State Comptroller any warrants for the payment of the assistant regional superintendent's salary or other employment-related compensation or benefits. In this paragraph, "relative" means a grandparent, parent, aunt, uncle, sibling, first cousin, nephew, niece, grandchild, or spouse of one of these persons. This paragraph applies only to contracts for employment entered into on or after the effective date of this amendatory Act of the 91st General Assembly.
105 ILCS 5/3A-18