The interior surfaces can contribute to projects achieving LEED points towards certification in the low emitting materials and furniture and furnishings categories. In addition, Cambria surfaces are GREENGUARD for Children and Schools certified and GREENGUARD indoor air quality certified . The only quartz surface produced in the United States, Cambria has lower transportation requirements than its competitors, is certified by NSF International as safe for use as a food preparation surface, and is radon free.