Register http headers Sustainability

[andreibesleaga]

Please confirm that:

• You have read and understood the requirements for registration.
• You have checked the registry and found no current value that meets your needs.
• Your specification reference URL is stable; ideally, managed by a widely-recognised standards development organisation (e.g., published as an RFC). Otherwise, please give additional information below.

If so, please provide the details of your request below.

• Field name: Sustainability
• Status: provisional
• Structured Type: Dictionary
• Specification document(s): https://www.ietf.org/archive/id/draft-besleaga-green-sustainability-header-00.txt
• Comments:

Any additional information (this will not be included in the registry)?