AIRR contains retired Indian Affairs records from BIA agencies and OST offices all over the nation. Records—from as far back as the 1700s—include trust, education and other historic Indian Affairs records. The only Indian records not stored at AIRR are active records at DOI offices and those that have become legal property of NARA and will remain at NARA facilities around the nation.

The facility continues to receive boxes from the field as active records become inactive. A total of over 200,000 indexed boxes had been sent to AIRR for permanent storage by the end of fiscal year 2012. In the past three years, the monthly average of boxes received has been 1,157.

Each standard records center box holds one cubic foot of material; one cubic foot holds approximately 2,500 sheets of paper.