A landfill operator seeking approval for a new daily cover material must submit an application to the appropriate regulatory agency, usually the state environmental protection department. The process typically requires detailed documentation demonstrating that the material provides the same level of protection as soil.
Laboratory testing may be required to show physical and chemical properties, such as durability, moisture resistance, and environmental safety. Field trials at the landfill can help confirm performance under real operating conditions. The operator must also provide a plan for applying, repairing, and, if applicable, reusing the material. Regulators review the submitted information, inspect test results, and may conduct site visits before granting approval. Once approved, the material can be used according to specified guidelines, and the operator must keep records of its application to demonstrate compliance.