Registration is now open for the fourth WaterSmart Innovations (WSI) Conference and Exposition, slated for Oct. 5-7, 2011 at the South Point Hotel and Conference Center in Las Vegas.

The world’s preeminent urban water efficiency conference, WSI is offering an “early bird” registration fee of $330 through Thursday, June 2. Beginning Friday, June 3, the full registration fee will be $390. To register, and for more information about the event, visit

Last year’s WSI conference and exposition drew nearly 1,100 participants from 40 states and 10 nations. WSI 2010 featured more than 130 professional sessions and an expo hall with 100 exhibitors.

The Southern Nevada Water Authority is presenting WSI 2011 in partnership with the Alliance for Water Efficiency, American Water Works Association, Audubon International, California Urban Water Conservation Council, the U.S. EPA’s WaterSense Program, Green Plumbers USA, International Association of Plumbing and Mechanical Officials, International Center for Water Technology, International Code Council and Irrigation Association.

More information is available at