There's no evidence to suggest that Sigma Sigma Sigma (Tri Sigma) sorority engages in hazing as a widespread or officially sanctioned practice. However, it's important to note that individual chapters, regardless of the national organization's rules, could potentially engage in activities that some would consider hazing. Reports of hazing in any organization, including sororities, often emerge only after the fact and are not always publicly documented.
The national organization of Tri Sigma strongly prohibits hazing and has resources in place to report and address such incidents should they occur. But the possibility of individual chapter violations, even if rare, can't be completely ruled out. Any allegations of hazing should be reported to the appropriate authorities, including the national Tri Sigma organization.