Changes made by Commission Implementing Decision of 11 June 2013 on the equivalence of the public oversight, quality assurance, investigation and penalty systems for auditors and audit entities of the United States of America pursuant to Directive 2006/43/EC of the European Parliament and the Council (notified under document C(2013) 3404) (2013/281/EU)
EU Decision 2013/281
No changes made by Commission Implementing Decision of 11 June 2013 on the equivalence of the public oversight, quality assurance, investigation and penalty systems for auditors and audit entities of the United States of America pursuant to Directive 2006/43/EC of the European Parliament and the Council (notified under document C(2013) 3404) (2013/281/EU) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.