International suppliers are facing different carbon-border requirements across destination markets, increasing the need to distinguish between regulatory systems rather than relying on a single reporting framework.
The International Institute for Sustainable Development (IISD) examined these developments in its State of Border Carbon Adjustments 2026, published on 30 July, covering the EU, UK and Australia alongside broader international discussions on border carbon measures.
Trade impacts vary across sectors and partners
The report finds that overall trade effects can be moderate while differing significantly between sectors and trading partners.
It also highlights the role of policy design and concerns over fairness for developing economies in the development of border carbon adjustment systems.
For manufacturers, differences in product coverage, emissions accounting and recognition of carbon costs mean that compliance requirements need to be assessed separately for each destination market.
Production data supports multiple compliance systems
Regulatory measures that remain under discussion also need to be distinguished from adopted requirements when companies plan future compliance processes.
A shared internal emissions database could support reporting under several carbon-border systems, but destination-specific rules would still need to be addressed separately.
Maintaining reliable production and emissions data can therefore provide a basis for adapting compliance information to different regulatory frameworks.
