Ill. Admin. Code tit. 68, § 1175.532
a) The 500-hour cosmetology course for licensed barbers seeking licensure as a cosmetologist (see Section 3-9 of the Act), shall include a minimum of 500 clock hours of instruction and practical experience and may include online hours in theory not to exceed 10% of the total hours as follows:
(Source: Added at 42 Ill. Reg. 15159, effective August 10, 2018)