CFR > Title 40 CFR > Title 40 – Protection of Environment Current as of: 2024 | Check for updates | Other versions Chapter I Environmental Protection Agency Chapter IV Environmental Protection Agency and Department of Justice Chapter V Council On Environmental Quality Chapter VI Chemical Safety and Hazard Investigation Board Chapter VII Environmental Protection Agency and Department of Defense; Uniform National Discharge Standards for Vessels of the Armed Forces Chapter VIII Gulf Coast Ecosystem Restoration Council Chapter IX Federal Permitting Improvement Steering Council Ask a legal question, get an answer ASAP!Click here to chat with a lawyer about your rights.