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ACA Airport Accreditation

AIRPORT DECARBONIZATION THROUGH AIRPORT CARBON ACCREDITATION

The Airport Carbon Accreditation assess carbon reduction efforts. It provides airports with a common framework and is the only institutionally endorsed, global carbon management certification program for airports.

Empowering Airports Towards Decarbonization

AIRPORT CARBON ACCREDITATION

Tunley Environmental provides specialized Airport Carbon Accreditation (ACA) verification services globally. The ACA Scheme, introduced by the Airports Council International (ACI) in 2009, is the leading voluntary carbon management standard for airports. A certified ACA verifier must independently verify the airport's carbon footprint and management strategies, ensuring airports meet rigorous ISO 14064 standards.

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ONLY 1.5% OF NORTH AMERICAN AIRPORTS HAVE JOINED ACA. THAT'S 79  OUT OF 5193

GLOBALLY, THERE ARE 574 AIRPORTS WHO HAVE JOINED ACA

THE ACA ACCREDITATION IS ACTIVE IN 86 COUNTRIES ACROSS THE WORLD

ENHANCE YOUR AIRPORT'S SUSTAINABILITY CREDENTIALS

It's time to get ahead of your competitors and join the Airport Carbon Accreditation journey.

WHY BECOME ACA ACCREDITED?

Becoming ACA accredited places airports at the forefront of sustainable practices, demonstrating commitment to environmental stewardship. With 574 airports on the path to ACA accreditation out of 41,700 worldwide, by joining, your airport would also be able to showcase:

Market Leadership

Achieve Level 5 ACA Accreditation: Stand out in the market by achieving the highest level of ACA accreditation. Differentiate your airport from competitors through strong marketing and communication efforts.

ATTRACTIVENESS TO STAKEHOLDERS Appeal to Environmentally Conscious Stakeholders: Attract environmentally conscious airlines and passengers by showcasing your airport's commitment to sustainability. Strengthen relationships with stakeholders, including airlines, passengers, and local communities.
OPERATIONAL EFFICIENCY

Optimized Resource Management: Identify opportunities for energy efficiency improvements and cost savings. Develop bespoke carbon management plans aligned with airport operations and objectives.

EXPERT SUPPORT AND INNOVATION Access to Expertise and Innovation: Access innovative solutions and best practices to optimize energy use and reduce emissions. Receive tailored advice, strategies, and ongoing support from Tunley Environmental to maintain and improve carbon management practices. Access specialized support in marketing your airport’s sustainability initiatives to enhance visibility globally.

THE 7 LEVELS OF THE ACCREDITATION

We will work with airports to support them through all 7 levels of the airport carbon accreditation.

  • LEVEL 1 MAPPING
  • LEVEL 2 REDUCTION
  • LEVEL 3 OPTIMIZATION
  • LEVEL 3+ NEUTRALITY
  • LEVEL 4 TRANSFORMATION
  • LEVEL 4+ TRANSITION
  • LEVEL 5 ACHIEVEMENT

MAPPING

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Measuring a baseline, an airport is classed as business, therefore the carbon footprint is measured in accordance with ISO 14064. 

  • Identify Scope 1 and Scope 2 emissions sources as outlined by the Greenhouse Gas Protocol.
  • Gather data and calculate the annual carbon emissions for each source.
  • Collate the information into a detailed carbon footprint report.

REDUCTION

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Carbon management and progress towards a reduced carbon footprint.

  • Achieve all requirements from Level 1: Mapping
  • Evidence of carbon management procedures including target setting (e.g. Energy reduction, clean energy supply, alternative fuels)
  • Prove there has been a reduction in the carbon footprint compared to the emissions of previous years.

OPTIMIZATION

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Third party engagement in carbon footprint management (e.g. ground handlers, catering and air traffic control).

  • Achieve all requirements from Level 1: Mapping and Level 2: Reduction.
  • Assess more of the carbon footprint by including Scope 3 emissions.
  • Scope 3 emissions can include, but not limited to
    • landing & take-off cycle emissions
    • surface access to the airport for passengers and staff
    • staff business travel emissions.
  • Present findings of third party engagement to reduce wider airport-based emissions.

NEUTRALITY

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Carbon neutrality for direct emissions by offsetting.

  • Achieve all requirements from Level 1: Mapping, Level 2: Reduction and Level 3: Optimization.
  • Offset any remaining Scope 1 and 2 emissions, additionally any emissions from staff business travel, using the correct internationally recognized offsets.

TRANSFORMATION

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Transforming airport operations and those of its business partners to achieve absolute emissions reductions.

  • Outline a policy commitment to reduce all emissions.
  • Include extra (to Level 3) Scope 1 and Scope 3 emissions into carbon footprint.
  • Create a long-term emissions reduction target and align it with the IPCC 1.5°C or 2°C pathways.
  • Develop a Carbon Management Plan to achieve the target.
  • Develop a Stakeholder Partnership Plan.

TRANSITION

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Compensation for residual emissions with reliable offsets.

  • Achieve all requirements of Level 4: Transformation
  • Offset any remaining Scope 1 and 2 emissions as well as emissions from business travel, using the correct internationally recognized offsets.

ACHIEVEMENT

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Level 5 is the topmost level in Airport Carbon Accreditation program. 

  • Submit a verified carbon footprint for Scope 1 and 2 emissions, as well as all categories of Scope 3 emissions as set out in the Greenhouse Gas Protocol.
  • Achieve and maintain ≥ 90% CO2 emissions reductions in Scope 1 and 2, as well as committing to net zero in Scope 3 by 2050 or sooner.
  • Apply for credible carbon removals for excess emissions.
  • Develop a Carbon Management Plan to achieve the emissions targets.
  • Develop a Stakeholder Partnership Plan to achieve net zero for Scope 3 emissions through value chain engagement and drive third parties to also deliver emissions reductions.

WHY CHOOSE TUNLEY?

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TRUSTED SCIENTISTS
Our team of PhD-level scientists bring extensive knowledge and expertise to all our services. This comprehensive understanding allows us to provide innovative and scientific solutions at the highest level to clients.
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GLOBAL COVERAGE

With a strong global presence, our net zero sustainability consultancy services and biodiversity services have served clients in various regions and industries. This international expertise allows us to implement learnings from best practices around the globe.

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CUSTOMIZED SOLUTIONS

We understands that every organization is unique, and one-size-fits-all approaches may not be effective. We offer personalized and tailored solutions that address the specific needs and challenges of each client. 

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CERTIFIED ACA VERIFIER

As Sustainability Consultants and a developed team of PhD-level Scientists, we have Dr Aaron Yeardley who is a trained and approved independent verifier for ACA. This enables us to independently verify other ACA projects.

ENHANCE YOUR AIRPORT'S SUSTAINABILITY CREDENTIALS

It's time to get ahead of your competitors and join the Airport Carbon Accreditation journey.

The team were so helpful and made this project so easy and painless. The communication was well executed and the requests were clear. I would 100% recommend working with Tunley Environmental, for all your sustainability reporting.”

Louise Ewer

Operations Director | Wunder-Bar Dispensing

They did exactly what was asked and where we had less than perfect understanding of the issues involved their expertise showed through. The response time to follow up enquiries was excellent and I would happily use Tunley again.”

Michelle Smith

Intellectual Property Controller | Power Roll

We used Tunley Environmental to help us with out carbon reduction targets, they conducted an embedded carbon report for one of our key ranges and we are now exploring next steps. I would highly recommend them professional, helpful a great company to work with”

Kieron King

Quality Manager | Inpress

From start to finish the whole team have excelled in communication and support. They made the entire process seemless, and nothing was too much for them. This is my first full experience completing a carbon assessment, and I couldn't have asked for a better company to complete this with.”

Rebecca Druce

SQE Manager | Spacecare

We found all of the Tunley Environmental representatives to be extremely friendly, helpful and knowledgeable. They provided a high standard of service with plenty of advice and support, including regular meetings to update on progress and present findings. We look forward to working with Tunley Environmental again on future projects.”

Mary Bellamy

Lead Research Nurse | University Hospitals Birmingham NHS Foundation Trust

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