The new rule extends the carbon footprint boundary to the full life cycle: from crude extraction, shipping and refining through to ex-works product, with Scope 3 emissions itemized rather than limited to the refinery stack. For independent refiners, the old playbook of cheap feedstock via imported fuel oil and diluted bitumen now has to carry the upstream carbon intensity as well.

SNSUC's DCS+ data platform has already been mapped to the guideline's fields - every digital warehouse receipt traces back to loading port, vessel voyage, inspection certificate and the matching carbon-intensity factor. Refiners' carbon cost is no longer a year-end plug number; it is a metered load attached to every tonne of product.

The guideline is currently 'trial,' but CBAM's timeline shows pilots typically harden into mandates within a year. Refiners should stand up the carbon-data collection chain now, or next year's allowance ledger and EU buyers' PCF (product carbon footprint) inquiries will land at the same time.