An emergency management plan is confidential if it contains sensitive information relating to critical infrastructure or facilities and the safety or security of such infrastructures or facilities could be jeopardized by disclosure of the emergency management plan. See Tex. Government Code §418.106(e). Additionally, the following information is deemed confidential:
(a) Any information maintained by the city for purposes of emergency management or disaster planning that relates to physically or mentally disabled individuals or individuals with special needs is also confidential. Id. at §418.175.
(c) Information that is collected, assembled or maintained by or for a city for the purpose of preventing, detecting, responding to, or investigating an act of terrorism or related criminal activity and: (1) relates to the staffing requirement of an emergency response provider, including a law enforcement agency, a fire-fighting agency, or an emergency services agency; relates to a tactical plan of the provider; or (3) consists of a list or compilation of pager or telephone numbers, including mobile and cellular telephone numbers, of the provider. Id. at §418.176.
(d) Information collected, assembled or maintained by or for a city for the purpose of prevention, detecting or investing an act of terrorism or related criminal activity and relates to an assessment of the risk or vulnerability of persons or property, including critical infrastructure, to an act of terrorism or related criminal activity. Id. at 418.177.
(e) Information related to the construction or assembly of an explosive weapon or a chemical, biological, radiological or nuclear weapon of mass destruction or indicates the specific location of a chemical, biological agent, toxin or radioactive material that is more than likely to be used in the construction or assembly of such weapon or unpublished information relating to a potential vaccine or a device that detects biological agents or toxins. Id. at §418.178.
(f) Encryption codes and security keys for a public communication system if the information is collected for the purpose of preventing, detecting or investing an act of terrorism or related criminal activity. Id. at §418.179.
(g) Information, other than financial information, in possession of the city that is: (1) a part of a report to an agency of the United States; (2) relates to an act of terrorism or related criminal activity; and is specifically required to be kept confidential by federal law, an information sharing agreement or to obtain federal funding. Id. at §418.180.
(g) Information that identifies the technical details of particular vulnerabilities of critical infrastructure to an act of terrorism is confidential. Id. at §418.181.
(h) Information, including access codes and passwords, that related to the specifications, operating procedures, or location of a security system used to protect public or private property from an act of terrorism or related criminal activity. Id. at §418.182.