H.R.5533: To revise and extend the chemical-facility security program under Public Law 109-295, and for other purposes.

Chemical Facilities Security Act of 2008 - Extends and transfers provisions requiring the Secretary of Homeland Security to establish risk-based performance standards, require vulnerability assessments, and implement site plans for the security of chemical facilities from the Department of Homeland Security Appropriations Act, 2007 to the Homeland Security Act of 2002.

Eliminates the condition that an actual conflict with such provisions would preempt related state or local regulatory authority.