Announcing the METI Source Rulebook Draft - Open for Public Comment

METI today opened its Source Rulebook Draft for a 30-day public comment period. This foundational policy defines how project boundaries are registered, verified, and disputes resolved on METI’s Source Ledger. Stakeholders can review the draft, submit feedback by July 20, and help shape a transparent, credible system for environmental impact markets.

Today we’re proud to share the first public draft of the METI Source Rulebook, the foundational policy that governs how project boundaries are registered, verified, and managed in the METI Source Ledger (MSL). Developed in close collaboration with industry experts, regulators, and environmental stakeholders, this Rulebook:

Why your feedback matters
The Source Rulebook will directly shape how farmers, project developers, buyers, and regulators interact with METI’s platform. Your insights - especially on practical use cases, potential edge cases, or clarity of language - will help us build a transparent, credible system that scales global impact markets.

How to contribute

  1. Read the draftMETI Source Rulebook Draft
  2. Submit your comments by July 20, 2025 → Feedback Form
  3. Stay tuned for our consolidated “response to comments” report, to be published after the consultation period.

What’s next
While the comment window is open, our team will be finalizing the Membership Manual, prepping a demo video of the new interface (including a role out of the Deposits Ledger), and gearing up to launch our Ledger Managed Services. We’ll keep the community updated every step of the way.

Thank you in advance for your time and expertise - we look forward to making environmental impact markets more trustworthy and resilient with you.

— Dom Sutton-Vermeulen, CEO, MillPont / METI