What is Proof of Sustainability (PoS)?

23. May 2025
3 minutes read

In the world of renewable fuels, transparency and traceability are critical. That’s where Proof of Sustainability (PoS) documentation comes in. A PoS is an official document that verifies the sustainability credentials of biofuels, ensuring that they are produced, sourced, and delivered in line with strict environmental and regulatory standards.

For fleet operators, logistics providers, and fuel purchasers aiming to reduce emissions and meet compliance goals, PoS is more than just paperwork — it’s a key tool in demonstrating real climate impact.

Why PoS Matters in the Biofuel Supply Chain

Biofuels, such as HVO100 and B100, are only truly sustainable when their entire lifecycle — from raw material sourcing to final use — meets strict sustainability criteria. PoS documentation serves several important purposes:

Verifies Compliance with EU Regulations

In the European Union, biofuels must comply with the Renewable Energy Directive (RED II and III). These directives set strict requirements for:
• Greenhouse gas reduction (minimum 65% vs. fossil fuels)
• Sustainable sourcing (e.g., preference for waste- and residue-based feedstocks)
• Traceability throughout the supply chain

A PoS confirms that the fuel meets these criteria and can be supplemented with information of relevant certification scheme.

Supports Environmental and ESG Reporting

Companies increasingly need to document their sustainability efforts — both for internal targets and external stakeholders, such as investors, partners, and public institutions. PoS documents provide the verifiable data needed to:
• Report CO₂ savings
• Track feedstock origin
• Meet ESG and CSR reporting requirements

Builds Trust and Transparency

With growing scrutiny around green claims and environmental impact, PoS documentation helps build credibility. Customers, partners, and regulators can trust that the fuel being used is genuinely sustainable, not just marketed as such.

What Does a PoS Include?

A Proof of Sustainability document can contain:
• Type of feedstock used (e.g., used cooking oil of vegetable origin, animal fats, rapeseed oil)
• Country of origin
• GHG emission factor
• Volume and delivery details
• Lifecycle CO₂ reduction percentage

This standardized information ensures traceability across the entire biofuel supply chain.

How Biofuel Express Supports PoS Documentation

At Biofuel Express, sustainability and transparency are part of our core offering. That’s why every biofuel delivery — whether HVO100 or B100 — is accompanied by Proof of Sustainability documentation.

Delivered via the Biofuel Express Insight Platform

Customers using our Insight portal get digital access to all PoS documentation directly in their account. Through the platform, you can:
• Download PoS per delivery or per period
• View aggregated CO₂ savings over time
• Filter and export data for use in sustainability reports

This makes it easy to meet both regulatory and internal climate reporting requirements, while maintaining full control and transparency.

Ready to Enhance Your Sustainability Reporting?

Whether you’re just starting with renewable fuels or scaling up your fossil-free operations, Biofuel Express makes sustainability measurable. With every delivery backed by PoS and full Insight integration, you can stay compliant, report with confidence, and keep your business on track toward climate goals.

Learn more about Biofuel Express Insight

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