July 22, 2004 - The commission releases its final report. The report said the original plot called for 10 hijacked planes, al-Qaida's role in the 1993 World Trade Center bombing was uncertain and there was no "credible evidence" of cooperation between Iraq and al-Qaida.

July 15, 2005 - It is announced that actors Hilary Swank and Kevin Costner will narrate the upcoming documentary film "On Native Soil: The Documentary of the 9/11 Commission Report." The film will tell some of the survivor's stories and will examine some of the commission's recommendations.

Sept. 10-11, 2006 - ABC airs a dramatization based on the 9/11 Commission Report called "The Path to 9/11." It airs over two nights with limited commercial interruption. Former Gov. Thomas Kean, chairman of the 9/11 Commission, serves as a senior consultant on the project.

July 21, 2011 - The Department of Homeland Security releases a report citing "significant progress" in fulfilling specific recommendations made by the 9/11 Commission.

Aug. 31, 2011 - The heads of the 9/11 Commission release a report warning of gaps in terrorism prevention in the U.S. The report, Tenth Anniversary Report Card: The Status of the 9/11 Commission Recommendations, highlights nine of the commission's recommendations that remain unfulfilled.

January 2012 - Despite the 9/11 Commission's directive to make most of their material available to the public by 2009, the records remained sealed at the National Archives and Records Administration (NARA).

April 12, 2012 - 9/11 Commission Co-Chairs Tom Kean and Lee Hamilton, now leaders of the Bipartisan Policy Center's re-launched Homeland Security Project, announce new members of the project.