The acting chief of the U.S. Securities and Exchange Commission said on Monday he has directed staff to look at ways to abandon a plan that would have widened the definition of alternative trading systems to include some cryptocurrency firms. The SEC in 2022 proposed requiring some crypto firms to register as alternative trading systems, drawing criticism from the sector in the face of potentially heightened oversight and additional rules. Acting Chairman Mark Uyeda told an audience of bankers he has instructed staff to look at ways to abandon that portion of the plan, which has yet to be finalized.