Ill. Sup. Ct. R. 3.9
A lawyer representing a client before a legislative body or administrative agency in a nonadjudicative proceeding shall disclose that the appearance is in a representative capacity and shall conform to the provisions of Rules 3.3(a) through (c), and 3.4(a) through (c).
Ill. Sup. Ct. R. 3.9
Comment
[1] In representation before bodies such as legislatures, municipal councils, and executive and administrative agencies acting in a rulemaking or policymaking capacity, lawyers present facts, formulate issues and advance argument in the matters under consideration. The decisionmaking body, like a court, should be able to rely on the integrity of the submissions made to it. A lawyer appearing before such a body must deal with it honestly and in conformity with applicable rules of procedure. See Rules 3.3(a) through (c) and 3.4(a) through (c).
[2] Lawyers have no exclusive right to appear before nonadjudicative bodies, as they do before a court. The requirements of this Rule therefore may subject lawyers to regulations inapplicable to advocates who are not lawyers. However, legislatures and administrative agencies have a right to expect lawyers to deal with them as they deal with courts.
[3] This Rule only applies when a lawyer represents a client an official hearing or meeting of a governmental agency or a legislative body to which the lawyer or the lawyer's client is presenting evidence or argument. It does not apply to representation of a client in otherwise permitted lobbying activities, a negotiation or other bilateral transaction with a governmental agency, or in connection with an application for a license or other privilege or the client's compliance with generally applicable reporting requirements, such as the filing of income-tax returns. Nor does it apply to the representation of a client in connection with an investigation or examination of the client's affairs conducted by government investigators or examiners. Representation in such matters is governed by Rules 4.1 through 4.4.