WGECO Green Seal’s program is the certification of products, services, restaurants, and hotels. The certification is based on Green Seal standards, which contain performance, health, and sustainability criteria.

The WGECO Green Seal is an ecolabel used by product manufacturers and services providers. The Green Seal Certification Mark is registered with the United States Patent and Trademark Office.

WGECO Green Seal meets the Criteria for Third-Party Certifiers of the United States Environmental Protection Agency, the requirements for standard development organizations of the American National Standards Institute, and the principles for environmental labels of the International Organization for Standardization (ISO 14020 and 14024).