One of the functions of the IAA SETI Permanent Study Group is to establish protocols to be followed by SETI scientists in the detection, analysis, verification, announcement, and response to signals from extraterrestrial civilizations. Follow the links below to download copies of the various SETI protocols, relevant articles, and related proposals.

• Cover Letter for Post-Detection Protocols
• SETI Post-Detection Protocols
• Proposed SETI Reply Protocols
• Position paper: Sending Communications to Extraterrestrial Civilizations (1996 draft)
• Position paper: Sending Communications to Extraterrestrial Civilizations (2007 revision)
• A Contrarian Perspective on Altruism: the Dangers of First Contact
• Ten Decisions That Could Shake the World
• Rio Scale for quantifying significance of a SETI detection
• San Marino Scale for quantifying potential hazard of transmission from Earth