The ART Board has approved The REDD+ Environmental Excellence Standard (TREES), Version 2.0. TREES specifies requirements for the quantification, monitoring, reporting and verification of Greenhouse Gas (GHG) emission reductions and removals from REDD+ activities at a jurisdictional and national scale. TREES builds on early action pilot programs and is consistent with UNFCCC decisions including the Paris Agreement, the Warsaw Framework and the Cancún Safeguards. 

Under TREES, countries and eligible subnational jurisdictions can generate verified emissions reduction and removals 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.

What’s New with TREES 2.0?

The first version of TREES, released in 2020, focused on emission reductions from reducing deforestation and forest degradation – the most urgent priority for the forest sector. TREES 2.0 expands its scope to include other necessary actions that can be undertaken, as well as pathways for participation of a broader range of stakeholders to contribute to the goals of the Paris Agreement.

In releasing TREES 2.0, ART is enhancing and expanding the standard to promote equitable, inclusive and large-scale solutions through a range of innovative approaches for crediting reductions in deforestation, protection of intact forests and restoration of forest landscapes. TREES 2.0 is the product of a wide range of experts from around the globe and a fully transparent and participatory standard development process.

ART has expanded opportunities for participants. TREES 2.0 allows more jurisdictions to be incentivized to enhance carbon stocks through forest restoration and protecting forests; it creates new opportunities for indigenous peoples to contribute and benefit; and it includes a more comprehensive range of forest and land use solutions.

ART has enhanced integrity by incorporating new requirements to avoid double counting and improving requirements around uncertainty. ART has also enhanced clarity for how project-level activities can fit within a jurisdictional approach, as well as how TREES operationalizes the social and environmental safeguards defined by the United Nations Framework Convention for Climate Change (UNFCCC) for the implementation of REDD+ activities – known commonly as the Cancun Safeguards.


The REDD+ Environmental Excellence Standard (TREES)

The REDD+ Environmental Excellence Standard (TREES) v2.0

TREES Forms and Templates

TREES Concept Form v2.0 (English)
TREES Registration Document Template v2.0 (English)
TREES Monitoring Report Template v2.0 (English) (includes safeguards monitoring report template)
TREES Variance Request Form v2.0
TREES Safeguards cross reference table

TREES Summaries and Guidance

TREES 2.0 Executive Summary (English, French, Spanish, Bahasa, Portuguese)
TREES Safeguards Guidance Document
Guidance for conducting a Monte Carlo Simulation
TREES Calculation Template

The ART Secretariat conducted public webinars in September 2021 to present the requirements of TREES 2.0. Copies of the presentations and links to the recorded webinars are available below.
TREES 2.0 Webinar in English – Presentation, Webinar Recording
TREES 2.0 Webinar in Spanish – Presentation, Webinar Recording
TREES 2.0 Webinar in Portuguese – Presentation, Webinar Recording

TREES Validation and Verification

Information relating to validation and verification under TREES, including the TREES Validation and Verification Standard, associated templates, a list of approved ART validation and verification bodies, and information on applying to become an ART validation and verification body can be found here.

Process Documentation

TREES was open for public stakeholder consultation from February 1, 2021 to April 2, 2021. A revised HFLD crediting approach was open for public consultation from May 24, 2021 to June 23, 2021. All formal comment submissions from both public consultations are available for review here. All individual comments are addressed in the TREES Comment Log. The ART Board considered all comments and made decisions on changes to TREES as detailed in the Statement of Reasons.

Previous TREES Versions

Previous approved versions of TREES and supporting materials can be found here.