The Nature Capital Carbon Registry validated by RINA in accordance to ISO 14068 and VCMI guidelines, prevents illicit profits from projects that fail to meet minimum carbon credit requirements and protect investors from low-quality initiatives. It excludes harmful practices, such as monocultures, which can damage local biodiversity, and promotes solutions with measurable environmental benefits, including CO₂e absorption, avoided greenhouse gas emissions, and biodiversity conservation.

Projects' eligibility criteria include ISO 14064-2 Validation and Verification by third-party, and demonstration of long-term project benefits. Projects must guarantee site protection for at least 10 years. By maintaining these standards, the Registry ensures that projects contribute meaningfully to carbon reduction, ecosystem restoration, and sustainable management practices.

Programmes and projects must be validated by third-party bodies, which shall themselves be accredited to ISO/IEC 17029, ISO 14065, ISO 14064-3 standards.