From the Associated Press via KDVR.com:
New homes in Colorado are getting a small change in 2011 — builders are now required to offer options to save water. The law taking effect Saturday requires builders to offer the option of “water-smart homes” that include options such as low-flow toilets.
More coverage from Tim Hoover writing for The Denver Post. From the article:
House Bill 1358, sponsored by Rep. Randy Fischer, D-Fort Collins, and Sen. Mike Johnston, D-Denver, would require builders of single-family, detached homes to offer customers the option of water-conserving toilets, faucets and showerheads. The bill even specifies what kinds of fixtures qualify, noting for example that “toilets shall use no more than one and 2 8/100ths of a gallon per flush.” And if builders offer upgrades for appliances and landscaping, they also will have to offer homebuyers water-thrifty dishwashers and Xeriscaping.
More conservation coverage here.