They’re saying no bags in the green cart. Why not allow compostable bags that we can close tightly, to keep away flies, rats and other vermin, and to reduce odor? “Plastic bags and compostable plastic liners (including BPI-certified compostable and biodegradable bags) cannot go in the green compost cart. ENV is working on accepting manufactured compostable materials in the green carts, but no date has been set. Q: What cannot go in the green cart?