An outline of the 9/11 Commission’s report apparently drafted in the spring of 2003, about 16 months before the commission reported, has been found in the National Archives by History Commons contributor paxvector and posted to the 9/11 Document Archive at Scribd. The outline, which consists of chapter headings and sub-headings, was mentioned first in Without Precedent, the official account of the commission by its chair and vice-chair Tom Kean and Lee Hamilton, and then in Philip Shenon’s The Commission. Three versions of the document were found (here, here and here).