An overview of HM Treasury's post-implementation review of the Money Laundering Regulations 2007 (SI 2007/2157) (MLRs), which was carried out between 2009 and 2012. The MLRs, which are designed to address threats from money laundering and terrorist finance, came into force on 15 December 2007, implementing the Third Money Laundering Directive (2005/60/EC) (known variously as MLD3, 3MLD, 3AMLD and Third AMLD). At that time, HM Treasury committed to carry out a post-implementation review of the regime under the MLRs after two years of operation.