TOOL have announced on their official website that ISIS will be opening for the upcoming Summer/Fall tour. The confirmed dates include:

August 30 - Englewood, CO @ Coors Amphitheater
September 1 - Las Vegas, NV @ Theater Under the Stars
September 2 - Marysville, CA @ Sleep Train Amphitheater
September 3 - Oakland, CA @ Oakland Arena
September 5 - Bakersfield, CA @ Rabobank Arena
September 7 - Los Angeles, CA @ Staples Center
September 11 - The Woodlands, TX @ Cynthia Woods Mitchell Pavillion
September 12 - San Antonio, TX @  AT&T Center
September 14 - Dallas, TX @ American Airlines Center
September 15 - Kansas City, MO @ Kemper Arena
September 16 - Minneapolis, MN @ Target Center
September 18 - Chicago, IL @ Allstate Arena
September 21 - Columbus, OH @ Nationwide Arena
September 22 - Detroit, MI @ Palace of Auburn Hills
September 23 - Toronto @ Molson Amphitheater
September 25 - Cleveland, OH @ Wolstein Center
September 28 - Camden, NJ @ Tweeter Center
September 29 - Mansfield, MA @ Tweeter Center

More dates are expected to be released shortly.