Gorilla Biscuits has reunited in recent times for a U.S. tour in 2006 and last year for a European tour. However, CIV has reportedly not played since their disbanding in 2000.
The former is often heralded as one of the most important New York hardcore bands of all time, notably for their sole full-length, 1989's landmark Start Today (Revelation). CIV was comprised of Anthony Civarelli and Arthur Smilios of GB, though GB/Quicksand guitarist Walter Schriefels received production and songwriting credits for 1995's hit debut Set Your Goals (Lava). The less celebrated Thirteen Day Getaway (Atlantic) was released in 1998.
Update: Sources close to the band are saying that only CIV will appear; the Gorilla Biscuits appearance does not look to be happening.