SCS Biodegradable Certification applies to liquid products such as cleaners, degreasers, detergents, and soaps. The Biodegradable Certification is designed to verify that products degrade safely and efficiently under worst-case circumstances and prevent chemicals from entering the environment at a rate that could reach harmful concentrations before degradation can occur. To be certified biodegradable, a product must degrade within a 10-day timeframe, meeting standards set by the Organization for Economic Cooperation and Development (OECD) for “Ready Biodegradability.” In addition, the product must to be non-toxic to aquatic life and must not contribute to the growth of oxygen-depleting plant life.