Airport Carbon Accreditation (ACA)

 

Definition of Airport Carbon Accreditation (ACA)

Airport Carbon Accreditation is a global, independent certification program for airports, assessing and recognizing their efforts to manage and reduce carbon emissions.

Levels of Certification:

  • Mapping – Measuring emissions.
  • Reduction – Implementing reduction measures.
  • Optimization – Engaging stakeholders in emissions reduction.
  • Neutrality – Offsetting remaining emissions.
  • Transformation – Aligning with long-term climate goals.

Benefits:

  • Demonstrates environmental leadership.
  • Supports Net-Zero Airport targets.
  • Encourages adoption of innovations like Green Taxiing and Smart Apron Management.

CAST Application

Airports pursuing [Airport Carbon Accreditation] can use CAST to evaluate how different operational changes – such as electrified GSE, optimized taxiing, or autonomous stand operations – impact their ACA scoring. CAST provides quantifiable, report-ready data to support both accreditation applications and progress reporting.

With this glossary we would like to give short, basic explanations and definitions for important and frequently used terms in the fields of Analysis, Runway and Terminal Capacity Assessment and Airport Simulation/Allocation. These are based on our experience of practical application in the industry. We would be happy to provide you with more detailed definitions and further explanations. Please feel free to contact us.