Moving to allay fears that Sarbanes-Oxley regulations could travel overseas if a U.S. business takes over the London Stock Exchange, the head of the U.K.’s Financial Services Authority made it clear that American ownership of a British stock exchange wouldn’t necessarily mean that U.S. regulations will apply to companies listed there.

“Neither the FSA nor the Securities and Exchange Commission consider that U.S. ownership of the LSE, in and of itself, would result in U.S. regulations, including Sarbanes-Oxley, applying to companies listed or quoted on its markets or member firms of the LSE,” FSA Chairman Callum McCarthy said in June 12 remarks.