Article 6.2 vs 6.4: Bilateral Deals and the Central Mechanism

Article 6.2 versus 6.4 is the two Paris Agreement pathways for international carbon cooperation, where 6.2 governs bilateral or plurilateral agreements between countries and 6.4 establishes a centralised mechanism with international rules and a supervisory body. Within Carbon Credits, the idea is foundational: the way it is defined quietly determines how the whole market behaves.

Under 6.2, two countries sign an arrangement, the host authorises units, and each side reports the transfer with corresponding adjustments. Under 6.4, projects register with a central mechanism, follow approved methodologies, and are overseen by a supervisory body that issues units into a shared registry. In practice, a developer usually starts with the pathway its host government has built procedures for, since a route that exists in law is worth more than one that is still being designed.

The choice shapes cost, speed and legal certainty. Bilateral deals can move quickly and reflect national priorities, while the centralised route offers harmonised standards and wider buyer access. Developers need to know which pathway their project can realistically use. The difference also affects who carries sovereign risk: bilateral deals tie a project to one buyer country's politics, while the centralised route spreads exposure across a wider set of participants and rules. Because Article 6.2 versus 6.4 links technical detail to market behaviour, small errors in how it is handled can grow into large gaps in trust and value.

Practical experience with Article 6.2 versus 6.4 tends to reward patience and discipline: the organisations that document their assumptions, keep an audit trail, and revisit their methods are the ones that keep credibility when questions are asked.

Bilateral approaches risk fragmented standards and weak transparency, while the centralised mechanism has taken time to become operational. Projects that assume eligibility under one pathway can stall if the rules move. A further complication is that guidance for both pathways continues to evolve, so eligibility assumptions written into a long-term offtake can become outdated before delivery.

CarbonFi supports both routes and tags each credit with its pathway, so buyers see whether the unit rests on a bilateral arrangement or a centrally issued mechanism unit. CarbonFi keeps the pathway, authorising entity and adjustment reference together on the credit record, which makes the two routes comparable side by side rather than in separate systems. CarbonFi's model, which pairs an AI-driven digital MRV layer with an on-chain registry and marketplace, is built so that Article 6.2 versus 6.4 can be handled with transparency and traceability from end to end.