The Federal Deposit Insurance Corporation ("FDIC") has proposed: to revise the ratios and ratio thresholds for capital evaluations used in its risk-based deposit insurance assessment system to conform to the prompt corrective action capital ratios and ratio thresholds adopted by the FDIC, the Board of Governors of the Federal Reserve System, and the Office of the Comptroller of the Currency; to revise the assessment base calculation for custodial banks to conform to the asset risk weights adopted by the FDIC, the Board of Governors of the Federal Reserve System, and the Office of the Comptroller of the Currency; and to require all highly complex institutions to measure counterparty exposure for deposit insurance assessment purposes using the Basel III standardized approach credit equivalent amount for derivatives and the Basel III standardized approach exposure amount for other securities financing transactions such as repo-style transactions, margin loans, and similar transactions as adopted by the Federal banking agencies. These changes are intended to accommodate recent changes to the Federal banking agencies' capital rules that are referenced in portions of the assessments regulation.