Ill. Admin. Code tit. 44, § 40.300
e) The business home office must be in the State of Illinois.
(Recodified from Section 20.300 of 44 Ill. Adm. Code 20 (Central Management Services) pursuant to Section 45-57 of the Illinois Procurement Code [30 ILCS 500/45-57], at 47 Ill. Reg. 12484)
To qualify as a SDVOSB or VOSB: