In early July 2002, the Associate General Council CTC/Legal Group started drafting a memo to the Attorney General requesting the approval of "aggressive" interrogation methods, which otherwise would be prohibited under the provisions of Section 2340-2340B, Title 18, United States Code, on Abu Zubaydah. This memo, drafted by Office of Legal Counsel, Jay Bybee and his assistant John Yoo, is also referred to as the first Torture Memo. Addressed to CIA acting General Counsel John A. Rizzo at his request, the purpose of the memo was to describe and authorize specific enhanced interrogation techniques to be used on Zubaydah. On July 26, 2002, Deputy Assistant Attorney General John Yoo informed the CIA that Attorney General John Ashcroft had approved waterboarding of Abu Zubaydah.