The use of the CE marking is independent of current certifications for soil- biodegradability. It requires fulfilling the criteria which are set out in the Delegated Regulation 2024/278712. To fulfil the requirements for the CE marking, in addition to the tests required by certifications, the CE-marked mulch films need to pass a chronic earthworm toxicity test, a nitrification inhibition test, and a biodegradation test in an aquatic environment. The newly defined biodegradability criteria are strict but scientifically sound and will fully demonstrate that certified soil-biodegradable mulch films are environmentally safe while contributing to soil health and soil fertility.
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