The state law pertaining to Low Speed Vehicle requirements may be found here: https://www.ilga.gov/legislation/ilcs/fulltext.asp?DocName=062500050K11-1426.2
The Illinois Secretary of State form, required to license a LSV in the State of Illinois, may be downloaded here: https://www.ilsos.gov/publications/pdf_publications/vsd796.pdf
Please note, in most instances, “stock” golf carts do not meet the requirements to be considered LSVs. They can, however, be equipped with the mandated equipment required in the above statute.