David J. Casserly, who is Vice President of Advocacy of LEAP, said the boycott will continue until Upper Crust provides them with proof of compliance with employment laws.

“We’d at least require them to show us the certification that the Department of Labor gives them” to show that they are in compliance, he said. “Until that happens, we’re probably going to keep going forward with the boycott.”

—Staff writer Rebecca D. Robbins can be reached at rrobbins@college.harvard.edu.

This article has been revised to reflect the following correction.

CORRECTION: FEB. 24, 2011

The Feb. 24 article "Students Boycott Upper Crust" misquoted Claire S. Valentin. She did not say that the campaign is a response to counter companies that "cheat" their employees; rather, it is a response to those who "treat" their employees in a way that violates "labor and employment laws."