<prompt> Translate the following text to EnglishKama wengi wa wasomaji wako wanaweza kujua - lakini mwanasheria Feige inaonekana hajui - Chama cha Wanasheria wa Marekani kilipitisha kanuni mpya mnamo 1983, inayojulikana kama Mifumo ya Mfano wa Utendaji wa Ufundi.  <response>: As many of your readers may know--but Lawyer Feige apparently does not--the American Bar Association adopted a new code in 1983, known as the Model Rules of Professional Conduct. 