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842 SAF Certificates and Carbon Insetting

92 min • 2 april 2025

The founder and managing director of 123Carbon explains carbon insetting, SAF certificates, and SAF registries. In the news, we look at the Safer Skies Act of 2025, KC-135 Stratotanker service life, Airbus future single-aisle technologies and design, and injuries after a mid-air TCAS alarm sounds. Also, the first COMAC 909 delivery outside China, ATC privatization around the world, security theater, and introducing women to aviation.

Guest

Jeroen van Heiningen is the founder and managing director of 123Carbon. The company works with fuel suppliers and carriers to issue transparent and externally verified environmental attribute certificates, including SAF certificates, used by airlines and cargo operators to reduce their transport-related Scope 3 emissions.

Jeroen discusses the sustainable aviation fuels (SAF) market, focusing on carbon insetting, the role of SAF registries, and the importance of transparency and standardization in the industry. He explains how carbon insetting differs from carbon offsetting, emphasizing the need for companies to invest in their value chain de-carbonization. The discussion also covers the digital certificate process, the collaboration between 123Carbon and IATA, and future trends in the SAF market.

123Carbon’s registry is integrated with other IT systems and allows an airline to upload documents and manage its inventory of digital certificates online. It’s a multi-modal agnostic platform that can be branded. With the use of sustainable bio-fuel growing in the land and sea modes of transportation, the accounting needs to be integrated with air.

Screenshot of 123Carbon integrated SAF Certificate platform.

123Carbon recently introduced Carboninsets.com, a free service for forwarders and cargo owners that connects them with issuers on the registry.

Jeroen set-up and led Accenture’s Sustainability Services Benelux and wrote the CDP NL 50 report in 2010. He has 15 years of experience with multi-modal carbon insetting programs, covering both Air (KLM corporate biofuels Program) and Marine (the GoodShipping Program). He holds a master’s in business administration from Tilburg University.

Takeaways:

Carbon insetting is a more effective long-term approach than offsetting.
Companies are increasingly linked to net-zero targets managed by SBTi. (Science Based Targets initiative)
Standardization in the SAF market is crucial for transparency.
Digital certificates are essential for tracking SAF transactions.
Collaboration between registries helps prevent double counting of SAF.
The SAF market is evolving with a focus on multimodal transportation.
Demand and supply must be connected to stabilize SAF prices.
New services like CarbonInsets.com facilitate connections between issuers and buyers.
The aviation industry is leading in SAF adoption compared to other transport modes.
Future initiatives will focus on integrating various transportation modalities.

Resources:

ICAO Global Framework for SAF: Sustainable Aviation Fuels (SAF)

IATA SAF Handbook [PDF]

Developing Sustainable Aviation Fuel (SAF). IATA estimates that Sustainable Aviation Fuel (SAF) could contribute around 65% of the reduction in emissions needed by aviation to reach net zero CO2 emissions by 2050.

IATA and 123Carbon to Collaborate on Interoperability for SAF Registries. A strategic collaboration to develop interoperability between their respective SAF focusing on three key elements:

A unique identifier and alignment of the relevant data points to exchange between registries.
A process for the exchange of information to avoid any potential double issuance.
A dispute resolution process.

IATA SAF Registry. The International Air Transport Association (IATA) announced that it will establish the SAF Registry to accelerate the uptake of SAF by authoritatively accounting and reporting emissions reductions from SAF.

SAFc Registry. Sustainable aviation fuel certificates (SAFc) can help drive demand for sustainable aviation if users understand how it works, what it represents, and are confident of its long-term credibility.

Aviation News

Allied Pilots Association Urges Passage of the Safer Skies Act of 2025

The Allied Pilots Association (APA), representing 16,000 American Airlines pilots, supports the bipartisan Safer Skies Act of 2025. The Act is “aimed at closing critical security loopholes in airport security,” according to U.S. Representative Nick Langworthy (NY-23), who introduced the legislation.

Langworthy says, “The Safer Skies Act will close a loophole that has allowed certain operators, like ticketed charter flights, to bypass the rigorous screening requirements that ensure the safety of all passengers. It is vital for protecting our skies and the lives of passengers and crew alike.”

“Specifically, the Safer Skies Act would require the TSA to update its security screening requirements for Part 135 [charter flights, air taxi services, and medical evacuation flights] and Part 380 [public charter flights] operators that offer individual seats in advance, provide publicly available schedules, and operate passenger seat configurations of more than nine seats.” It would “ensure that these operators are held to the same security standards as any other scheduled commercial airline.”

This legislation has also received support from the Airline Pilots Association, Intl., National Air Carrier Association, Association of Professional Flight Attendants, Association of Flight Attendants, Air Line Pilots Association, Southwest Airlines Pilots Association, Transport Workers Union, and the NetJets Association of Shared Aircraft Pilots.

KC-135 Stratotanker Could Fly Past 100 Years in Service

The U.S. Air Force Air Mobility Command has suggested their KC-135 Stratotanker fleet may serve beyond the 2050 stated retirement date with a life extension and upgrade program. About 376 KC-135s are still in service. All KC-135’s were converted from the original TF33 engine to CFM56 engines. The Next Generation Air Refueling System (NGAS) is considering the possibility of a stealthy tanker design.

Airbus touts open-fan engines and folding wing designs for next narrowbody jet

During the 2025 Airbus Summit, the airframer hinted at what a new narrowbody delivered in the second half of the 2030s might look like. Artistic renderings show a conventional tube-and-wing design with open-fan engines under the low wings. Airbus is targeting a 20-30% increase in fuel efficiency compared with the A320neo-family aircraft. Airbus also mentioned long wingspan folding wings and biomimicry.

Image of Airbus future single-aisle airplane. — Airbus image.

Press release: Airbus advances key technologies for next-generation single-aisle aircraft

Mid-Air Collision Alarm Leaves Passengers With Broken Back And Ankle As Pilots Of United Airlines Flight To San Francisco Suddenly Pitched Up

The NTSB published its final report of a September 19, 2024, incident where the pilots of a United Airlines B757 flight had to take evasive action to avoid hitting an aircraft. As a result of the maneuver, two passengers sustained injuries. The Traffic Alert and Collision Avoidance System (TCAS), also known as the Airborne Collision Avoidance System (ACAS), sounded on United Flight 2428 due to an aircraft passing 1,500 feet below them. The FO disengaged the autopilot and pitched the plane upward.