Protesters at a California Faculty Association-sponsored rally in San Francisco.
California State University's faculty union plans to vote on whether to strike at all 23 Cal State campuses if contract negotiations remain unsuccessful.
The board of the California Faculty Association decided Tuesday to hold a strike authorization vote in mid-April.
It will be the second time the union has taken a strike vote in the past four months. The last vote led to one-day walkouts at the East Bay and Dominguez Hills campuses on Nov. 17.
Both sides have been negotiating for 18 months.
At issue are contract proposals that would increase benefit costs or deny wage increases. The union also is seeking limits on class sizes and more faculty rights in CSU's for-profit arms, including Extended Education classes.
The union represents about 23,000 professors, lecturers, coaches, counselors and librarians.