NOTE: On March 28, 2024, the U.S. Office of Management and Budget (OMB) published the results of its review of Statistical Policy Directive No. 15 (SPD 15) and issued updated standards for maintaining, collecting, and presenting race/ethnicity data across federal agencies. The Census Bureau is working to implement the updates in all its programs as expeditiously as possible. The information on this page references the 1997 SPD 15.