The Commodity Futures Trading Commission finalized rules requiring swaps clearinghouses to open access to firms with $50 million or more in capital. "This is one of the most significant rule makings to lower risk in the financial system," said Chairman Gary Gensler. Republican commissioners opposed the rule. The CFTC backed away from a plan to subject systemically important financial institutions to higher financial-resource requirements. Instead, clearinghouses must have enough funds to cover their largest members' default.