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On-site visits: our verification protocol

Our verification process combines yearly remote monitoring with in-person visits every 2–5 years where applicable.

At Tree-Nation, our verification process combines advanced remote monitoring with periodic on-site visits. This hybrid approach ensures robust due diligence, aligns with certification requirements, and supports high standards of transparency and governance.

🛰️ Remote verification: our primary method

We monitor all active projects annually using:

Method Description Frequency
Remote sensing (EVI) Satellite imagery to assess vegetation health and forest evolution Every year
Geolocated photos Submitted by project holders to document site progress Every year
VQS reports Verified Quality Submissions including planting and maintenance data Every year
These remote tools are the foundation of our verification strategy and apply to all open projects, regardless of size or location.
 

🧭 On-site visits

Tree-Nation complements remote monitoring with physical visits to eligible planting sites. These visits allow us to assess forest growth, maintenance, and impact on the ground.

We schedule on-site visits for qualifying sites:

  • At least once every 5 years

  • In practice, our average visit frequency is once every 2.1 years

Each visit typically includes 5–10 planting sites, with 1–2 sampling zones assessed per site.

📅 Access our visit calendar

You can view all planned and past visits on our public calendar: Tree-Nation Project Visit Calendar. Learn more about our project verification here. 

This calendar is updated regularly as new field missions are confirmed. You may follow the field updates from our team via our #TreeNationField

🚫 Visit exclusions

Certain planting sites are not subject to physical visits, due to technical or contextual constraints. These include:

  • Closed projects

  • Non-exclusive planting sites (co-financed or co-managed)

  • Micro-projects with fewer than 20,000 trees

  • Sites in regions where safety cannot be guaranteed

All of these remain covered by our annual remote verification process.