While energy use reductions have traditionally gained the most attention in commercial building design, designers are now also focusing their attention on water use reduction. Water stress continues to increase in more parts of the world and is expected to be the next major resource of concern impacting the United States. Buildings that used the first generation of waterless urinals saw mixed results, due to the requirement for special traps needing regular replacement. Waterless urinals retrofitted into existing buildings were often problematic when existing piping was not properly pitched for proper fluid discharge. The pint (0.125 gallon per flush) urinal provides significant water savings, while addressing some of the challenges with waterless urinals. Pint urinals are now a WRL minimum standard.