Bank Runs Spooked Regulators. Now a Clampdown Is Coming.

One year after a series of bank runs threatened the financial system, government officials are preparing to unveil a regulatory response aimed at preventing future meltdowns.

After months of floating fixes at conferences and in quiet conversations with bank executives, the Federal Reserve and other regulators could unveil new rules this spring. At least some policymakers hope to release their proposal before a regulation-focused conference in June, according to a person familiar with the plans.

The interagency clampdown would come on top of another set of proposed and potentially costly regulations that have caused tension between big banks and their regulators. Taken together, the proposed rules could further rankle the industry.

The goal of the new policies would be to prevent the kind of crushing problems and bank runs that toppled Silicon Valley Bank and a series of other regional lenders last spring. The expected tweaks focus on liquidity, or a bank’s ability to act quickly in tumult, in a direct response to issues that became obvious during the 2023 crisis.

The banking industry has been unusually outspoken in criticizing the already-proposed rules known as “Basel III Endgame,” the American version of an international accord that would ultimately force large banks to hold more cash-like assets called capital. Bank lobbies have funded a major ad campaign arguing that it would hurt families, home buyers and small businesses by hitting lending.

Last week, Jamie Dimon, the chief executive of JPMorgan Chase, the country’s largest bank, vented to clients at a private gathering in Miami Beach that, according to a recording heard by The New York Times, “nothing” regulators had done since last year had addressed the problems that led to the 2023 midsize bank failures. Mr. Dimon has complained that the Basel capital proposal was taking aim at larger institutions that were not central to last spring’s meltdown.