U.S. Treasury Secretary Timothy Geithner yesterday urged the Securities and Exchange Commission to pursue new rules for money-market mutual funds, triggering fresh opposition from industry leaders who had beaten back similar proposals and are pursuing a weaker overhaul.

Geithner, heading a Washington meeting of the Financial Stability Oversight Council, a group formed by the Dodd-Frank Act to address systemic financial risks, won unanimous approval for a draft recommendation to the SEC spelling out three ways to overhaul the $2.6 trillion industry. A new option would require capital buffers of as much as 3 percent of assets, while two other solutions he offered were opposed earlier by the fund industry and rejected in August by an SEC majority.

Representatives for the fund industry, who last month put forth their own plan, immediately denounced the proposals as stale and unhelpful. While Geithner has said the SEC is best positioned to address money funds, he has also said that the regulators' panel, often referred to as FSOC, might intervene and subject funds to oversight by the Federal Reserve if the SEC fails to act.