V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

IAB
       Internet Activities / Architecture Board (RFC 1160/1601,
Internet)


The Free On-line Dictionary of Computing (30 December 2018):

Internet Architecture Board
IAB

   (IAB) The technical body that oversees the development of the
   Internet suite of protocols.  It has two task forces: the
   Internet Engineering Task Force and the Internet Research
   Task Force.

   "IAB" previously stood for Internet Activities Board.

   (1994-12-06)