Sunward has the 15" round parachutes compliant with TARC - Team America Rocketry Challenge 2013.

Available in red and ready for shipping direct from Sunward or Sunward's retailers.
http://www.sunward1.com/05-291-round-nylon-parachute

A summary of the new rules is available on the Sunward TARC page:
http://www.sunward1.com/content/tarc...enge-new-rules

Registration open September 4, 2012.
http://www.rocketcontest.org/