Navigating Verra VCU Registration: Unlocking Carbon Credits from OTR Tyre Diversion

Diverting OTR tyres from stockpiles and landfill is an ESG win on its own. For some projects it can also become a carbon finance asset, but only if the project is designed, documented and audited to the standard that buyers and regulators recognise. For most industrial projects that standard is Verra's Verified Carbon Standard (VCS), and the credits it issues are called Verified Carbon Units (VCUs).

Plan for a long runway. Validation alone can take up to a year or longer, according to Verra's guidance, so most projects should budget two to three years from the first methodology decision to the first credits being issued.

Stage 1: Methodology & Additionality

Every VCS project applies an approved methodology that sets out how emission reductions are calculated. The first job is to confirm that a methodology fits your specific activity, or whether one has to be adapted, which adds time. The second is additionality: showing that the project would not go ahead without carbon revenue, and defining a credible baseline for what would otherwise have happened to the tyres, whether stockpiling, landfill or burning. A weak baseline is the most common reason a promising project stalls.

Stage 2: PDD & Consultation

The project design document, now called the project description, sets out the project boundary, baseline, emission calculations and monitoring plan. The proponent opens an account on the Verra Registry and lists the project on the pipeline, which starts a 30-day public comment period. Stakeholder consultation belongs here too: neighbouring communities, the mine, regulators and offtakers should be heard before auditors arrive.

Stage 3: Validation Audit

An independent, Verra-approved validation/verification body (VVB) assesses the project description against VCS rules, reviews the public comments and issues a validation report. Expect site visits, findings to close out and revisions to documents. Validation must be complete before the project can request registration.

Stage 4: Registration & Issuance

After successful validation, the proponent submits a registration request and Verra reviews the documents. Once the plant is operating and the monitoring data exists, a VVB verifies the actual emission reductions. After Verra approves that verification, the proponent requests issuance and VCUs, each with a serial number, appear in the Verra Registry. Verification then repeats periodically across the crediting period.

Aligning With South Africa's Carbon Tax Offset Rules

South Africa's carbon tax allows liable companies to use eligible offsets to reduce their tax bill, up to an allowance cap. Credits under Verra's VCS, the Gold Standard and the Clean Development Mechanism are recognised, but the project must be located in South Africa and meet the national eligibility criteria, and credits are tracked and retired through National Treasury's Carbon Offset Administration System. The allowance limits have been revised for 2026 onward, so confirm current figures with National Treasury and your tax adviser.

The practical consequence is a strategic fork. A South African project can serve both domestic compliance buyers and the voluntary market, while a project in the DRC cannot use South African carbon tax offsets and would target voluntary buyers instead.

Governance Points to Settle Early

• Ownership: who holds the credits and who bears the audit and monitoring costs.
• Data discipline: weighbridge, throughput and output records need to be audit-grade from the first day of operation.
• No double counting: the same reduction must not be sold twice or claimed in two places.
• Forward sales: any pre-sale of credits should reflect the real risk and timeline of registration.

This article is general information and not tax or legal advice.