ASTM D6400 plays a pivotal role in maintaining environmental safety by ensuring that compostable plastics do not contribute to pollution. By setting stringent requirements for biodegradation and disintegration, the standard minimizes the potential for plastics to persist in the environment, reducing long-term ecological risks. Furthermore, by addressing the ecotoxicity of the end product, ASTM D6400 helps protect ecosystems from harmful substances that could disrupt biodiversity.