The 1973 New Section Operation reorganized Order of the Arrow lodges to align with the new Six Regions: East Central, North Central, Northeast, Southeast, South Central, and Western. Regions were divided into areas, which were then divided into sections. It is at the sectional level that lodges participate in annual conclaves.

In 1992, the Six Regions were consolidated into the Four Regions.

East Central Region Conclaves	North Central Region Conclaves	Northeast Region Conclaves	Southeast Region Conclaves	South Central Region Conclaves	Western Region Conclaves