A STAC-related project has the following stages:

1. Solution proposal. A supplier with a transition-aligned technology approaches a potential buyer, or a buyer with a Scope 3 commitment it is trying to keep approaches a technology provider.
2. STAC formation. The two parties use a checklist developed by S3ID to negotiate the terms of contract. These cover the transition pathway that applies to the relevant industry, the entity that developed that pathway, the impact that use of the transition-aligned technology is expected to have over and above the pathway, and the conditions under which the buyer releases milestone payments to a supplier for the delivery of environmental attributes, as well as the product itself, during the life of the contract.
3. Review & registration. The terms of the proposed STAC are submitted to S3ID’s Review Group. This team checks for: a) alignment with credible standards, b) the data sources proposed to confirm performance, c) the process proposed to monitor and report process and c) the auditor that will be used to verify performance.
4. Implementation & monitoring. During the life of the contract, the buyer monitors and reports on the delivery of environmental attributes
5. KPI milestone disbursements. As the contract progresses, suppliers are paid as they deliver product that is consistent with the environmental attributes claimed during negotiation.
6. Certification of impact delta delivered. At the end of the contract, an on review of all relevant documentation, S3ID certifies the impact – over and above what would otherwise have been achieved – in an impact delta certificate.