Chemical Facility Anti-Terrorism Security Authorization Act of 2011

[AI summary unavailable — showing source text] Chemical Facility Anti-Terrorism Security Authorization Act of 2011 - Amends the Homeland Security Act of 2002 to require the Secretary of Homeland Security (DHS) to maintain regulations to protect chemical facilities against terrorism that include: (1) risk-based performance standards for chemical facility security, (2) requirements for chemical facility security vulnerability assessments, and (3) requirements for the development and implementation of chemical facility site security plans. Repeals similar provisions of the Department of Homeland Security Appropriations Act, 2007. Applies such regulations to any chemical facility that the Secretary determines presents a high level of security risk with respect to acts of terrorism, with the exception of Department of Defense (DOD) and Department of Energy (DOE) facilities, facilities regulated by the Nuclear Regulatory Commission (NRC), port security facilities, public water systems, and treatment works. Requires information developed pursuant to this Act to be protected from public disclosure but permits information sharing with state and local government officials under specified circumstances. Directs the Secretary to audit and …