These are certified compostable by BPI. If you are using compostable bags for your normal, landfill-bound trash (again, these will be more planet-friendly in the sense that they're not made of plastic, even if they don't break down right away), If you are using Garbage bags for your normal, landfill-bound trash (again, these will be more planet-friendly in the sense that they're not made of plastic, even if they don't break down right away),