Ozone Layer Protection
The stratospheric ozone layer is Earth’s “sunscreen” – protecting living things from too much ultraviolet radiation from the sun. The emission of ozone depleting substances has been damaging the ozone layer. But through domestic and international action, the ozone layer is healing and should fully recover by about 2065. This website addresses stratospheric ozone issues, including the science of ozone depletion, EPA's regulatory approach to protecting the ozone layer, EPA-approved alternatives to ozone-depleting substances, and sun safety.
What's New
- Withdrawal of Proposed Rule – Standards Related to the Manufacture of Class II Ozone-Depleting Substances for Feedstock
- Learn more about the American Innovation and Manufacturing (AIM) Act of 2020: Protecting Our Climate by Reducing Use of HFCs.
2020 Ozone Layer Protection Milestones
Explore how successful ozone layer protection is a part of our everyday life

Ground-Level Ozone
This website addresses stratospheric ozone protection. EPA has a separate website about ground-level ozone pollution.