Organizations with this subscription are authorized to register one or multiple renewable thermal generators and will receive Energy Attribute Certificates (EAC) issued for these generators. A Generator-Only Subscription is permitted to hold certificates, initiate outgoing transfers and withdraw certificates, specifically for use in external regulatory programs like the California Low Carbon Fuel Standard or the United States Environmental Protection Agency Renewable Fuel Standard. Although there are no annual fees for Generator-Only Accounts, transaction-based fees may be applied for the withdrawal of certificates.