RALEIGH – The federal office investigating allegations about the way the University of North Carolina at Chapel Hill handles sexual assault cases is seeking reams of information from the school within 20 days.

The Office for Civil Rights within the U.S. Department of Education outlined its demands in a letter dated March 1, setting a March 21 deadline.

Among the documents OCR requested are those regarding policies, procedures, training and grievance procedures for sexual assault complaints. The office also wants a spreadsheet describing all student complaints about sexual assault.

The letter says OCR will address separately allegations of disability discrimination and retaliation.

Three students, a former student and a former assistant dean of students filed the complaint with the federal government in January.

School officials say UNC-CH will cooperate with the investigation.