Continuing Chemical Facilities Antiterrorism Security Act of 2010

[AI summary unavailable — showing source text] Chemical Facility Anti-Terrorism Act of 2009 - Amends the Homeland Security Act of 2002 to set forth provisions governing the regulation of security practices at chemical facilities. Authorizes the Secretary of Homeland Security to designate any chemical substance as a substance of concern and establish the threshold quantity for each such substance after considering the potential extent of death, injury, and serious adverse effects that could result from a chemical facility terrorist incident. Directs the Secretary to: (1) maintain a list of covered chemical facilities that are of sufficient security risk; (2) assign each covered facility to one of four risk-based tiers; (3) establish standards and procedures for security vulnerability assessments and site security plans; (4) require each facility owner or operator to submit and, once approved, to implement such an assessment and plan; and (5) establish risk-based chemical security performance standards for site security plans. Permits the Secretary, under specified circumstances, to: (1) accept an alternate security program submitted by the owner or operator of the facility; (2) conduct facility security inspections; and (3) obta…