Regulators unveil sweeping changes to capital rules for banks with $100 billion or more in assets

U.S. regulators on Thursday unveiled a sweeping set of proposed changes to banks’ capital requirements to address evolving international standards and the recent regional banking crisis.

The changes, designed to boost the accuracy and consistency of regulation, will revise rules tied to risky activities including lending, trading, valuing derivatives and operational risk, according to a notice from the Federal Reserve, Office of the Comptroller of the Currency and the Federal Deposit Insurance Corporation.

Long expected by banks, the proposed rules seek to tighten regulation of the industry after two of its biggest crises in recent memory — the 2008 financial crisis, and the March upheaval in regional lenders. They incorporate parts of international banking regulations known as Basel III, which was agreed to after the 2008 crisis and has taken years to roll out.

The changes will broadly raise the level of capital that banks need to maintain against possible losses, depending on each firm’s risk profile, the agencies said. While the heightened requirements apply to all banks with at least $100 billion in assets, the changes are expected to impact the biggest and most complex banks the most, they said.

“Improvements in risk sensitivity and consistency introduced by the proposal are estimated to result in an aggregate 16% increase in common equity tier 1 capital requirements,” the regulators said in a fact sheet. Tier 1 common capital levels measure an institution’s presumed financial strength and its buffer against recessions or trading blowups.

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