Students are protesting an absolute smoking ban on all Arizona State University campuses that starts in August 2013.
Protestors passed out free cigarettes as part of the demonstration on Wednesday.
Students for Liberty groups from across the valley spoke out against a law they believe will dictate their personal choices and hinder their personal freedom.
The group says they don't encourage smoking, but the ability to choose if they want to or not.
Beginning next year, ASU will ban smoking entirely from campus, no longer having designated smoking areas.
"So we're fighting for smoking areas and a place for smokers to smoke away from people that don't want to. This is a way we can share public space and it's about protecting personal liberty," says Carlos Alfaro.
Students for Liberty says ASU should be held to a standard that doesn't alienate certain groups of students.
FOX 10's Kristin Anderson reports.
Related story: ASU to implement smoking ban on campus