In June 2007, the SEC voted to remove the grandfather provision that allowed fails-to-deliver that existed before Reg SHO to be exempt from Reg SHO. SEC Chairman Christopher Cox called naked short selling "a fraud that the commission is bound to prevent and to punish". The SEC also said it was considering removing an exemption from the rule for options market makers. Removal of the grandfather provision and naked shorting restrictions generally have been endorsed by the U.S. Chamber of Commerce.