"We strongly welcome the intention of the legislator to give central banks of issue a role in the regulatory framework for CCPs (central clearing counterparties)," Yves Mersch told an audience in Windsor, Britain.
"At the same time, the involvement of the central bank in the regulatory framework should not put into question either its independence or its discretion to define the scope of its monetary policy."
The ECB's top supervisor, Daniele Nouy, said a day earlier she would rather leaving the oversight of clearing houses, middlemen between buyers and sellers of securities, to the European Securities and Markets Authority.
With 90 percent of euro derivatives cleared in London, European regulators are keen to ensure they keep their grip on clearing houses, middlemen between buyers and sellers of securities, even after Britain leaves the European Union.
(Reporting By Francesco Canepa; Editing by Balazs Koranyi)