Verra opens its Scope 3 registry with the rulebook unfinished

Verra opened applications this week for project developers to issue Scope 3 Units, the environmental attribute certificates companies use to claim emissions savings from supply-chain investments they cannot trace directly to their own suppliers, and the nonprofit expects a first issuance next year. Stefan Jirka, its director for agriculture and supply chain innovation, says the aim is "dozens, if not hundreds" of projects generating millions of the units within roughly three years. Verra, which Trellis calls the world's largest issuer of voluntary carbon market credits, already has more than 2,500 projects issuing credits under its standard.

Issuance capacity is arriving before demand does: Verra adapted existing methodologies for agricultural land management and low-carbon concrete production so developers can generate the new units, which means the plumbing on the sell side is largely in place. Buyers have been the hesitation point, holding off on EACs until standard-setters blessed the approach, and SBTi's June update to its Corporate Net-Zero Standard did that; PepsiCo included EACs in the emissions statement it released last month, but whether others follow quickly is unclear.

The accounting is plural: the Advanced and Indirect Mitigation Platform has published guidelines, the Greenhouse Gas Protocol is still developing its position, and for-profit players such as Athian, which issues EACs for livestock projects, and the registry S3 Markets are building in parallel. A corporate buyer booking a unit against a Scope 3 inventory still has to assemble its own policy from partly finished sources — an odd foundation for a market Verra wants measured in millions of certificates.

Verra is placing a volume bet: that scale and registry incumbency will shape buyer-side rules faster than deferring to whoever publishes first. For a registry with methodologies already written and no appetite for a rival's guidelines becoming the default, that trade is sound, but it front-loads the risk onto the first buyers, who become the test cases for an accounting treatment nobody has finished, and onto the association test itself, which asks only that a purchaser source from suppliers in the region where it invested. That is a far lighter evidentiary standard than chain-of-custody, and it is where verification disputes will land.

Transition finance is building reporting and verification rails ahead of the standards that will govern them. Verra and Gold Standard's joint Article 6.2 bookkeeping arrived in August; September brought Agreena's 4.5-million-tonne soil carbon contract with Kazakhstan, where the credits exist only if the measurement system delivers them. A Scope 3 registry is the same instinct at larger volume, and the test is whether the Greenhouse Gas Protocol's position lands before or after the first units are booked.