These Rules amend the Court Martial Appeal Court Rules 2009 (S.I. 2009/2657) so as to give effect to Directive 2010/64/EU of the European Parliament and of the Council of 20th October 2010 on the right to interpretation and translation in criminal proceedings. They require the provision, where necessary, of interpretation and translation services for persons accused or convicted of service offences who need such services at an appeal, including persons with hearing or speech impediments. These amendments come into force on 27th October 2013.