First-time evaluators are invited to attend a special workshop to prepare them for their visit. Yes, in general sometimes an information technology person is used instead. In addition to the usual qualifications of librarianship, the commission looks for those who can view an institution as a whole, and can work as a member of a team under conditions of haste, as well as those who understand that it is the commission's standards, not those of another agency, that are being applied. The commission uses rather small teams, but will put a librarian on by request. Contact the organization for a form to complete, or you can recommend people and the commission will send application forms to them.
Plans are underway for a Web site form.
The commission tends to seek multiple skills in site visitors. Therefore a librarian with academic credentials and, or experience will be highly valued. Obviously the commission seeks someone with appropriate professional credentials for a librarian. Most frequently it is a librarian, but can be someone else with expertise in library and information technology resources. The commission regularly seeks new potential evaluators through mailings to member institutions.