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Most sustainability problems become communication problems eventually. Not because the work is fake, but because the claim becomes broader than the evidence.
This is especially true for Sustainable Aviation Fuel certificates. SAFc help companies support aviation decarbonisation without needing physical control of the fuel supply chain. They are also risky, because they sit in a market where accounting rules, registry systems and reporting expectations are still developing.
For ESG and finance teams reporting against a net zero or SBTi target, this is not a cosmetic concern. The claim is what an auditor, a regulator or a journalist will eventually test. The companies that build trust with SAFc will not be the ones making the biggest claims. They will be the ones making the clearest ones.
They know what SAFc can actually say
A SAF certificate does not mean a company's specific flight was powered by SAF. It does not mean aviation emissions disappeared. It does not mean the company has solved its travel footprint.
It means a defined environmental attribute, from a defined volume of Sustainable Aviation Fuel, has been transferred and retired for the buyer, subject to the rules of the registry and certification system used.
That may sound less exciting. But it is much more defensible. In climate communication, precision is not weakness. It is credibility.
A company can still say something meaningful. It can say it supported the use of SAF in the aviation system. It can say it purchased and retired SAF certificates linked to its aviation emissions. It can say the purchase is part of a broader Scope 3 strategy. But it should avoid language that implies more than the instrument can prove.
They connect the claim to the right emissions
SAFc should not be treated as a generic climate product. Their natural home is aviation, which for most corporates means Scope 3 emissions from business travel or air freight. The strongest claim is linked to the same activity the certificate is designed to address.
This matters because ESG expectations are moving away from broad offsetting logic. Companies are increasingly expected to act within their own value chains, or within the sectors that generate their emissions. A bank with material business travel emissions has a stronger story when it supports SAF than when it buys unrelated credits from a distant project category.
That does not make SAFc automatically better than other instruments. It makes them more directly connected to the problem they are trying to address. And that connection is valuable.
A credible SAFc claim does not need to sound perfect. It needs to be specific enough to survive scrutiny.
They treat SBTi uncertainty honestly
This is where companies need to be careful. The Science Based Targets initiative has been exploring how environmental attribute certificates may be used in relation to Scope 3 targets. This is relevant for SAFc, because SAF certificates are a form of market-based environmental attribute.
But the rules are not fully settled. Work on the Corporate Net-Zero Standard has created momentum and debate, yet companies should avoid presenting SAFc as universally accepted for target achievement until final rules and related GHG Protocol guidance are clear.
The honest position is balanced. SAFc may become an important instrument for addressing aviation-related Scope 3 emissions, especially where physical traceability is not practical. But buyers still need to understand the boundaries of what can be reported, what can be claimed and what remains uncertain. That honesty is not commercially damaging. It is the foundation for trust.
They make documentation part of the product
A weak certificate with strong marketing is still weak. A strong certificate with poor documentation is still hard to use. For corporate buyers, documentation is not an administrative afterthought. It is part of the value.
The buyer should be able to show the certificate was issued, transferred and retired correctly, and to identify the fuel, certification pathway, emissions calculation, registry entry, retirement statement and ownership of the claim.
This matters internally too. Finance wants to know what was purchased. Sustainability wants to know what can be reported. Legal wants to know what can be said. Procurement wants to know whether the supplier was credible. Leadership wants to know whether the action is worth the cost. A good SAFc purchase gives each function enough confidence to move. A poor one creates work for everyone later.
They avoid the language that creates risk
The easiest way to weaken a credible purchase is to overstate it. Companies should be cautious with phrases like carbon neutral flights, zero-emission travel, fully decarbonised aviation, or offsetting our flights with SAF. They are tempting because they are simple and sound good. They also invite scrutiny.
Better language is more specific:
- We purchased and retired SAF certificates linked to our aviation emissions
- The purchase supports the use of lower-carbon aviation fuel
- The certificates are linked to verified SAF volumes
- The claim is limited to aviation-related Scope 3 activity
- The purchase forms part of our broader decarbonisation strategy
- We continue to prioritise reducing unnecessary travel
This kind of wording is less dramatic. That is the point. It is easier to defend.
They understand that trust compounds
The SAFc market needs trust to scale. Buyers need to trust suppliers. Suppliers need to trust demand. Registries need to protect integrity. Standards need to provide clarity. Auditors need evidence. Stakeholders need claims they can understand.
Every weak claim makes the market harder. Every disciplined claim makes it stronger. That is why SAFc should be treated less like a communications opportunity and more like a procurement discipline.
The goal is not to sound ambitious for one reporting cycle. It is to build a repeatable way to support aviation decarbonisation without creating accounting, legal or reputational risk. For companies with meaningful aviation emissions, SAFc may become one of the most relevant tools available, but the market will not reward volume alone. It will reward clarity. Refine helps companies structure SAFc purchases and claims that are specific, documented and built to stand up to scrutiny.
