Wis. Stat. § 227.13: Advisory committees and informal consultations.

An agency may use informal conferences and consultations to obtain the viewpoint and advice of interested persons with respect to contemplated rule making. An agency may also appoint a committee of experts, interested persons or representatives of the public to advise it with respect to any contemplated rule making. Such a committee shall have advisory powers only. Whenever an agency appoints a committee under this section, the agency shall submit a list of the members of the committee to the joint committee for review of administrative rules.