PSA launched a petition and set of demands in late August.
Community members have openly opposed the new regulations.
OCRSM released its annual report Wednesday, which shows the fewest investigations conducted since the office was founded in 2014.
The Nyumburu Cultural Center and Black Faculty and Staff Association led the event.
The guidelines are set to go into effect in August.
Cases will be adjudicated virtually due to the pandemic.
It opened three cases in 2017.
The body voted 18-0 on the bill, with two abstentions.
More students have been involved in sexual assault prevention events in recent years, they said.
The school's diversity and inclusion vice president, Georgina Dodge, will assume control over the Office for Civil Rights and Sexual Misconduct.