The Office of the Comptroller of the Currency (OCC) is amending its assessment regulation to add two new asset-size categories to the table in 12 CFR 8.2(a) used to calculate each national bank's semiannual assessment. The addition of these categories is warranted to take account of significant structural changes in the national banking system since 1992, when the table was last revised, and will enable the OCC to realign our assessments to better reflect industry structure and OCC's corresponding expenses of operations. The OCC is issuing this rule as an interim rule with a request for comment so that such a realignment can occur promptly.