The IAB has issued an IETF-wide Call for Comments on “Technical Considerations for Internet Service Blocking and Filtering” prior to potential approval as an IAB stream RFC.

The document is available for inspection here:
https://datatracker.ietf.org/doc/draft-iab-filtering-considerations/

The Call for Review will last until 26 February 2014. Please send comments to iab@iab.org.