This group works to define a common output format of Passive DNS Servers which clients can query. Over time, since the initial announcement of Passive DNS replication at the 17th Annual FIRST Conference on Computer Security by Florian Weimer, multiple Passive DNS Implementations were developed. This standard proposes a common output format to make Passive DNS information more universally useable.
The initial goals of this SIG are to collaboratively develop a common output format for Passive DNS data. A first Internet Draft was published on September 9th 2014. The lastest version can be found on the IETF site