If you need to get a restricted driver's license for work related opportunities only, you need to file a petition with the court where you were convicted of driving under the influence of alcohol and/or a controlled substance seeking this request and serve your state's department of motor vehicles with the request. You will also need to serve the district attorney's office that prosecuted you for the offense as well.If you do not have a criminal defense attorney to assist you, you should consider retaining one in that the process will be much easier for you if you have someone who has filed similar petitions previously.