Our Standard

TREES: The REDD+ Environmental Excellence Standard


TREES – The REDD+ Environmental Excellence Standard – is ART’s standard for the quantification, monitoring, reporting and verification of Greenhouse Gas (GHG) emission reductions and removals from REDD+ activities at a jurisdictional and national scale.

Under TREES, countries and eligible subnational jurisdictions can generate verified emission reduction and removal credits by meeting precise and comprehensive requirements for:

  • accounting and crediting
  • monitoring, reporting and independent verification
  • mitigation of leakage and reversal risks
  • avoidance of double counting
  • assurance of robust environmental and social safeguards
  • and the transparent issuance of serialized units on a public registry

ART and TREES have been designed to help accelerate progress toward national scale accounting and implementation to achieve emissions reductions and removals at scale and to achieve Paris Agreement goals.

TREES builds on early action pilot programs and is consistent with UNFCCC decisions including the Paris Agreement, the Warsaw Framework and the Cancún Safeguards.

Overview of TREES

The Process of Developing
TREES v1.0 and v2.0

In addition to working with REDD+ experts, ART conducted an inclusive, fully transparent, multi-stakeholder consultation process to inform the development of the TREES standard.

To review all the development documentation regarding both TREES v1.0 and v2.0, click below:


“UN-REDD seeks to support the expansion of forest-based climate solutions at scale, with high environmental integrity and advancing social equality. We welcome the opportunity that TREES 2.0 presents to contribute to these outcomes.

The Programme looks forward to reviewing the standard approved by the ART Board, and to continuing to work with the ART Secretariat, participating jurisdictions and interested demand-side entities to help achieve the goals of the Paris Agreement, and make 2021 a turning point for scaling up climate action from forests.”

Mario Boccucci,
Head of the UN-REDD Programme Secretariat