25 C.F.R. § 39.407 How long must a school maintain records?
Title 25 - Indians
The responsible administrative official for each school must maintain records relating to ISEP, supplemental services, and transportation-related expenditures. The official must maintain these records in appropriate retrievable storage for at least the four years prior to the current school year, unless Federal records retention schedules require a longer period.
Title 25: Indians
PART 39—THE INDIAN SCHOOL EQUALIZATION PROGRAM
Subpart D—Accountability
§ 39.407 How long must a school maintain records?

