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The RCE team has an excellent understanding of airline and airport GHG inventories and is knowledgeable of the types of emission sources and associated data activity used for compliance with the Airport Carbon Accreditation Program (ACA) and the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA). Having verified large airlines and airports in the past, RCE is familiar with LTO cycle emissions and appropriate calculation methodologies.

Airport Carbon Accreditation (ACA)

The ACA program is a collective voluntary engagement to reducing carbon emissions and provides the only industry global reference standard for airport carbon mapping and energy management.  Since its inception in 2009, over 300 airports have been certified under the ACA program.  Aiming for continual performance improvement, airports seek to reduce carbon dioxide emissions, improve stakeholder engagement and future airport sustainability plans through four different levels of certification.

Each certification level includes all aspects of preceding levels.  RCE is well-versed in the ACA program, having verified multiple airports under the Airport Carbon Accreditation program, including airports at both Level 4 and Level 4+.  As verification is required on entry, upgrade, or same-level renewal every second year, RCE can help provide assurance that your airport is managing, reducing, and ultimately neutralizing its Scope 1 & 2 carbon dioxide emissions.  See more information about the Airport Carbon Accreditation program here.

Carbon Offsetting Reduction Scheme for International Aviation (CORSIA)

CORSIA is a global market-based emission mitigation approach for the airline industry. It was adopted in October 2016 and developed by the International Civil Aviation Organization (ICAO). As both domestic and international aviation account for approximately two percent of global anthropogenic CO2 emissions, CORSIA aims for:

  • An average improvement in fuel efficiency of 1.5% per year from 2009 to 2020;
  • A cap on net aviation CO2 emissions from 2020 (carbon-neutral growth); and
  • A reduction in net aviation CO2 emissions of 50% by 2050, relative to 2005 levels.

CORSIA is just one pillar of a four-pillar strategy to achieve the above goals. The four pillars are:

  • Improved technology, including the deployment of sustainable low-carbon fuels;
  • More efficient aircraft operations;
  • Infrastructure improvements, including modernized air traffic management systems; and
  • A single global market-based measure, to fill the remaining emissions gap (CORSIA).

See more information about CORSIA here.

Aviation at RCE

December 2014
RCE became the first accredited company in the United States under the ACA program.
February 2015
RCE completed three ACA Level II Verifications for the Port of Portland: Portland International Airport (PDX), Hillsboro Airport (HIO), and Portland – Troutdale Airport (TTD).
July 2016
RCE completed the first Level 3+ verification under the ACA program in the United States for DFW International Airport.
February 2020
RCE began its first CORSIA verification.
July 2020
RCE completed its first CORSIA verification.
August 2020
RCE completed the world's first Level 4+ ACA verification.
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