25 ILCS 82/10
The sponsor of each bill, or the agency proposing a rule, to which Section 5 applies, shall present a copy of the bill or proposed rule, with the request for a housing affordability impact note, to the Illinois Housing Development Authority. The housing affordability impact note shall be prepared by the Illinois Housing Development Authority and submitted to the sponsor of the bill or the agency within 5 calendar days, except that whenever, because of the complexity of the measure, additional time is required for the preparation of the housing affordability impact note, the Illinois Housing Development Authority may inform the sponsor of the bill or the agency, and the sponsor or agency may approve an extension of the time within which the note is to be submitted, not to extend, however, beyond June 15, following the date of the request. The Illinois Housing Development Authority may seek assistance from a Statewide trade organization representing the real estate or home building industry in the preparation of a housing affordability impact note. If, in the opinion of the Illinois Housing Development Authority, there is insufficient information to prepare a reliable estimate of the anticipated impact, a statement to that effect can be filed and shall meet the requirements of this Act.
25 ILCS 82/10