by the director of enforcement that the Commission should investigate the matter takes effect, or if the determination by the director of enforcement that the complaint should be dismissed is overruled as provided under the previous sentence, the director of enforcement shall initiate an investigation of the matter on behalf of the Commission. (B) If the Commission initiates an investigation pursuant to subparagraph (A), the Commission, through the Chair, shall notify the subject of the investigation of the alleged violation. Such notification shall set forth the factual basis for such alleged violation. The Commission shall make an investigation of such alleged violation, which may include a field investigation or audit, in accordance with the provisions of this section. The director of enforcement shall provide notification to the Commission of any intent to issue a subpoena or conduct any other form of discovery pursuant to the investigation. Upon the expiration of the 15-day period which begins on the date the director of enforcement provides such notification, the director of enforcement may issue the subpoena or conduct the discovery, unless during such 15-day period the Commission, by vote of a majority of the members of the Commission who are serving at the time, prohibits the director of enforcement from issuing the subpoena or conducting the discovery. (3) (A) Upon completion of an investigation under paragraph (2), the director of enforcement shall promptly submit to the Commission the director's recommendation that the Commission find either that there is probable cause or that there is not probable cause to believe that a person has committed, or is about to commit, a violation of this Act or chapter 95 or chapter 96 of the Internal Revenue Code of 1986, and shall include with the recommendation a brief stating the position of the director of enforcement on the legal and factual issues of the case. (B) At the time the director of enforcement submits to the Commission the recommendation under