LONDON, Nov 20 (Reuters) - Britain's antitrust regulator is proposing a revamp of its remedies procedure, its chief executive Sarah Cardell said on Monday, adding that any change would only succeed if merging parties engage in good faith.

"As part of the package of proposals we are announcing today, we have included a revamped remedies procedure," Cardell said in a speech. (Reporting by Paul Sandle, editing by Sarah Young; editing by William James)