AR HB1500

Amends the Homeland Security Information Act to add "cybersecurity incident" as a new category of protected information, defined as actual or threatened events jeopardizing security, integrity, confidentiality, or availability of government computers, systems, networks, data, or infrastructure

Expands the definition of "emergency service agency" to include agencies with first responder or investigative responsibilities in the event of a cybersecurity incident, catastrophe, or use of a weapon of mass destruction

Exempts threat assessments, plans, operational policies, procedures, and training developed by emergency service agencies for preventing, investigating, or responding to cybersecurity incidents, catastrophes, or weapons of mass destruction from public disclosure unless the agency head determines disclosure is in the best public interest

Protects investigative files of emergency service agencies relating to cybersecurity incidents, catastrophes, or weapons of mass destruction from public disclosure until after final adjudication

Extends the sunset clause expiration date from July 1, 2019 to July 1, 2023, with the act becoming effective July 1, 2019 under an emergency clause