The United Steelworkers union says in a release Friday that adjunct faculty at the university's McAnulty College and Graduate School of Liberal Arts will vote for two weeks beginning June 22. The votes will be submitted by mail and counted on July 9.
The union praised the university for "working cooperatively" in allowing the election to go forward.
The union says a majority of Duquesne's 124 adjunct professors want to unionize.
The Adjuncts Association filed for an election with the National Labor Relations Board after the university declined to voluntarily recognize the group as a bargaining unit.