Answer:
Set permissible pollution levels and approve or deny all projects significantly afftecting the environment .
Step-by-step explanation:
The Environmental Protection Agency, abbreviated EPA, is a federal agency with the mission of protecting human and environmental health by drafting and enforcing regulations.
The organization deals with environmental assessment, research and education. It has the role of enforcing environmental laws of various kinds, in collaboration with the counties, indigenous tribes and local governments. Supervision, licensing and follow-up are partly carried out by these bodies for the Agency. The agency is authorized to punish violations of laws with fines, prohibitions and other means.