# Environmental Compliance > US environmental regulatory compliance: EPA requirements under 40 CFR (Clean Air Act, Clean Water Act, RCRA hazardous waste), state Department of Environmental Quality (or equivalent) rules, and EPA's ECHO enforcement and compliance history database — grounded exclusively in EPA.gov, eCFR Title 40, and state DEQ regulatory text. License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Source: MIND (m-i-n-d.ai) Hub: https://www.m-i-n-d.ai/minds/environmental