Military Construction Authorization Act for Fiscal Year 2004

Military Construction Authorization Act for Fiscal Year 2004 - Authorizes the Secretary of Defense (Secretary) and the Secretaries of each military department to acquire real property and carry out military construction projects in specified amounts at specified installations and locations. Authorizes each department Secretary to construct or acquire family housing units, carry out architectural planning and design activities, and improve existing military family housing in specified amounts. Authorizes appropriations to the Department of Defense and each military department for fiscal years after 2003 for military construction, land acquisition, and military family housing functions. Limits the total cost of authorized construction projects. Modifies certain prior-year construction projects.Authorizes the Secretary to make contributions for the North Atlantic Treaty Organization Security Investment Program and authorizes appropriations for fiscal years after 2003 for such Program.Authorizes appropriations for fiscal years after 2003 for the Guard and reserve forces for acquisition, architectural and engineering services, and construction of facilities.Terminates all authorizations contained in this Act on October 1, 2006, or the date of enactment of an Act authorizing funds for military construction for FY 2007, whichever is later, with exceptions. Extends certain prior-year military construction projects.Authorizes specified military land conveyances.Overseas Military Facility and Range Structure Review Act of 2003 - Establishes the Commission on the Review of the Overseas Military Facility and Range Structure of the United States.