A product that has an OK compost INDUSTRIAL label means that when the materials enter an industrial compost facility, the organic matter will biodegrade into water, carbon dioxide and/or biomass within 180 days. A product can also be OK compost HOME, which means it is able to biodegrade in a home compost setting. To be certified compostable, the product must meet specific certification criteria, such as the standard test methods ASTM D6868 and ASTM D6400.