SCS certificate is equivalent to GREENGUARD certificate.
Indoor Advantage Gold is founded on the CA Section 01350 Specification, the only health-based building material specification for indoor air quality. The screening limits for emissions under Section 01350 are based on the California Office of Environmental Health Hazard Assessment’s (OEHHA) Chronic Reference Exposure Levels (CRELS). CRELs are concentrations below which adverse health effects are not likely to occur from a long-term exposure to hazardous airborne substances. has developed chronic toxicity guidelines for air pollutants that provide a strong scientific basis for the Indoor Advantage™ Gold program. The OEHHA program uses widely accepted procedures developed by the U.S. EPA and includes extensive peer review and public comment. Only toxicity data are used in the assessment. To date, the program has developed Chronic Reference Exposure Levels (CRELs) for 78 chemical substances. CRELs are concentrations that assume long-term exposures and include a number of conservative uncertainty factors (http://www.oehha.ca.gov/air/chronic_rels/agency.html). For a product to qualify for Indoor Advantage Gold certification, its estimated VOC concentrations for classrooms and offices must not exceed one half the CREL concentrations under the assumption that other products in a building also may be sources of the same compounds. Criteria are also derived from a variety of programs including the South Coast Air Quality Management District (SCAQMD) Rule 1113 and 1168. Indoor Advantage Gold also meets the relevant emissions criteria established in USGBC LEED Rating Systems.