The U.S. Securities and Exchange Commission will delay rules for the derivatives markets and will have only a "skeleton crew" tracking hedge funds if it doesn't receive a 2012 budget increase, Chairman Mary Schapiro said.

"The new responsibilities assigned to the agency under the Dodd-Frank Act are so significant that they cannot be achieved solely by wringing efficiencies out of the existing budget," Schapiro said in testimony prepared for a hearing of the Senate Banking Committee on the anniversary of Dodd-Frank enactment tomorrow.

Citing its many new duties under Dodd-Frank, Schapiro requested a $1.4 billion 2012 budget for her agency after a 2011 budget debate resulted in a $74 million increase to $1.2 billion. A budget bill crafted by House Republicans would keep the SEC at its current spending level next year.