Rigorous standards.
Fully public.
RTD Ratings operates under a strict framework of open standards, protocols, and transparency principles. This page is the public record of every document that governs how we certify, measure, and report.
Open by design
Every RTD certification is grounded in publicly available, peer-reviewed standards. We don’t create our own rules — we apply the world’s best ones, rigorously and transparently.
RTD Ratings works under the DEV Carbon Standard — the world’s first carbon standard based on open data and systems engineering — alongside the DEV Food Security Data Integrity Standard, regional adaptations for Mexico and Castilla-La Mancha, and internationally recognized transparency principles from Oxford, the UN, and the Open Data Charter.
Core standard
Food Security
Regional adaptations of the DEV Carbon Standard
The DEV Carbon Standard has been formally adapted for specific regional contexts. Each regional standard preserves the open data and systems engineering backbone of the core standard while incorporating local regulatory frameworks, ecosystems, and measurement protocols.
Regional · Mexico
Regional · Spain
Carbon Protocol
Carbon Protocol
Carbon Protocol
Carbon Protocol
Carbon Protocol
Infographic products for
ecosystem actors
Visual resources designed to help non-technical stakeholders — investors, landowners, project integrators, and policymakers — understand how the DEV ecosystem works.
Assessment Tool
A visual explainer of RTD’s satellite-based carbon measurement tool — designed for non-technical audiences. Covers the 5 carbon pools, the multi-spectral indices used (NDVI, EVI, BSI, Rao’s Q), the IPCC tier system, and why this approach is precise, inclusive, and independently verifiable.
Coming soon