86 Ill. Adm. Code 140.901
Written Opinions
Section 140
Section 140.901 Written
Opinions
a) Taxpayers must not rely on verbal opinions from Department
employees, but will be protected only if the opinion from the Department is in
writing. For Department rules concerning the binding effect of Private Letter
Rulings and General Information Letters, see 2 Ill. Adm. Code 1200.
b) For Department rules concerning the rescission of Private
Letter Rulings, see 2 Ill. Adm. Code 1200.
c) As used in this Part, "Regulation" means any
Department rule or regulation of general application, whether called a "Rule",
a "Regulation", an "Article", a "Section", a
"Part" or something else.