Isometric’s Mangrove Restoration Protocol has become the first blue carbon framework to receive approval from the Integrity Council for the Voluntary Carbon Market (ICVCM), authorising the issuance of credits carrying the prestigious Core Carbon Principles (CCP) label.
The milestone marks the first time a protocol dedicated to coastal ecosystem restoration has met the ICVCM’s rigorous global benchmark for high-integrity carbon credits.
With this latest endorsement, Isometric now holds ICVCM approval for eight carbon removal protocols—the highest number of any certifier globally. The Mangrove Restoration Protocol is also the second framework within the “Isometric Biosphere” category to be approved, following the certification of its Reforestation Protocol in February 2026.
The ICVCM granted approval following an independent technical assessment which confirmed the protocol adheres to all ten Core Carbon Principles. These criteria include permanence, additionality, transparency, independent verification, and robust quantification methods.
The approval provides immediate benefits for project developers and corporate buyers:
- For suppliers: Developers currently working with Isometric, such as InQube, K Animus, and Planters, are now eligible to deliver CCP-labelled credits. This label acts as a mark of quality, helping suppliers demonstrate the scientific rigour and transparency of their mangrove projects.
- For buyers: The CCP label serves as a trusted signal, simplifying the procurement process for companies seeking high-quality offsets that meet the industry’s most demanding standards for environmental integrity.
Mangrove ecosystems are highly efficient at sequestering carbon, often outperforming terrestrial forests. However, “blue carbon” projects have historically faced scrutiny regarding baseline measurements and long-term durability.
By achieving the CCP label, Isometric’s protocol provides a standardised, verified framework to scale investment into these critical coastal habitats. The ICVCM’s approval is expected to drive significant capital toward mangrove restoration as a credible tool for achieving global net-zero targets.
