Which method of carcass disposal involves mixing 1 part carcass to 2 parts litter and 1 part straw in alternate layers in a boxed, enclosed area?

Composting is the method of carcass disposal that involves mixing 1 part carcass to 2 parts litter and 1 part straw in alternate layers in a boxed, enclosed area.

Composting method allows the organic material to decompose naturally through the use of heat and microbial activity, transforming the carcasses into a nutrient-rich soil amendment. Composting fits within the Incident Command System’s (ICS) broader framework of managing animal health and environmental impacts during disasters. For example, during a mass livestock casualty event, composting can be used as a sustainable disposal solution.

From the perspective of personnel involved in disaster response, such as environmental health specialists and veterinarians, composting provides a reliable, controlled, and environmentally safe option for carcass disposal.

Source: https://emilms.fema.gov/is_0011a/groups/420.html