Public Transportation Terrorism Prevention Act of 2004

[AI summary unavailable — showing source text] Public Transportation Terrorism Prevention Act of 2004 - Directs the Secretary of Transportation to enter into a memorandum of understanding with the Secretary of Homeland Security (Secretary) to define and clarify the respective public transportation security roles and responsibilities of the Department of Transportation (DOT) and the Department of Homeland Security (DHS). Requires DOT's Federal Transit Administration to submit all public transportation security assessments to DHS and the Secretary to review and augment such assessments. Requires the Secretary to: (1) establish security improvement priorities and to update them annually; (2) conduct assessments of all transit agencies considered to be at greatest risk of a terrorist attack, of local bus-only public transportation systems, and of selected rural transportation systems; and (3) use information collected to establish the process for developing security guidelines. Directs the Secretary to award grants directly to public transportation agencies for allowable capital security improvements (including tunnel and perimeter protection systems and surveillance and communications equipment); and (2) operational security impro…