305 ILCS 5/6-2.1

(a) For the purpose of assisting homeless persons in securing housing, all assistance units that include a homeless person shall have an asset disregard no less than that applicable to recipients of benefits under Article 4 of this Code. For purposes of this Section, "homeless" or "homeless person" means either of the following: (1) An individual who lacks a fixed, regular, and adequate nighttime residence; or (2) An individual who has a primary nighttime residence that is any of the following: (A) A supervised publicly or privately operated shelter designed to provide temporary living accommodations (including welfare hotels, congregate shelters, and transitional housing for the mentally ill). (B) An institution that provides a temporary residence for individuals intended to be institutionalized. (C) A public or private place not designed for, or ordinarily used as, a regular sleeping accommodation for human beings. (b) While the Illinois Department shall consider other indicia of homelessness in determining whether a person is homeless, a letter from a shelter provider stating that a person is homeless or residing in its shelter shall create a rebuttable presumption that the person is homeless.