WAC 478-165-050
WAC 478-165-050. Faculty and staff obligations
In assigning course materials, faculty and staff members shall consider the least costly practices which may include, but are not limited to, adopting the least expensive edition of materials available, consistent with copyright restrictions, adopting free, open textbooks when available, and working with librarians to provide compilations of web and library resources that are freely available to students, when educational content is comparable as determined by the faculty.