Europe is preparing to follow the United States in delaying the introduction of stricter rules on bank capital, while it lobbies for a rethink of the U.S. stance, EU sources said.

The delay could push back the start of global rules in Europe, known as Basel III, by about six months, and that could be even longer if diplomats and lawmakers fail to break a deadlock on a law meant to be phased in from the start of 2013.