Route Development
Salvador Bahia Airport First in Americas to Achieve ACA Level 5 Carbon Certification
Salvador Bahia Airport reaches highest airport carbon management level, cutting emissions 90% and targeting net-zero Scope 3 by 2050.
In the ongoing global conversation about climate action, the aviation industry often finds itself under a microscope. It’s a sector widely recognized as difficult to decarbonize, yet one that is critical to the global economy. Against this backdrop, a significant milestone has been set on the American continent. On November 13, 2025, during the COP30 climate conference in Belém, Brazil, VINCI Airports announced that Salvador Bahia Airport has become the first in the Americas to achieve Level 5 of the Airport Carbon Accreditation (ACA) program. This isn’t just another certificate; it represents the highest, most stringent level of carbon management and reduction recognized in the airport industry.
This achievement places Salvador Bahia in an elite global group and marks a pivotal moment for sustainable aviation in the Western Hemisphere. It moves beyond the concept of simple carbon neutrality, which can often rely heavily on offsetting emissions. Level 5 certification demands a demonstrated commitment to absolute emission reductions and a comprehensive strategy for the future. As we unpack what this means, it becomes clear that this is more than a local success story; it’s a potential blueprint for how airports worldwide can transition from ambitious targets to tangible, verifiable results.
The timing of the announcement, coinciding with COP30, underscores its importance. It serves as a powerful statement to the international community that meaningful decarbonization within the transportation sector is not just possible, but is actively happening. For Brazil, it showcases leadership in environmental stewardship, while for VINCI Airports, it validates a long-term, action-oriented environmental strategy that is now bearing fruit on a global scale.
To grasp the full weight of this accomplishment, we must first understand the framework it sits within. The Airport Carbon Accreditation (ACA) is the sole globally recognized carbon management certification for airports, administered by the Airports Council International (ACI). It provides a structured pathway for airports to manage and reduce their carbon footprint, progressing through various levels of accreditation. Level 5 is the pinnacle of this program, designed to align the industry with the ambitious goals of the Paris Agreement and global net-zero commitments.
Achieving Level 5 is fundamentally different from earlier stages of carbon management. It requires an airport to have already reached and maintained net-zero carbon emissions for its direct operations. These are categorized as Scope 1 emissions (from sources owned or controlled by the airport, like its vehicle fleet) and Scope 2 emissions (from the purchase of electricity, steam, heating, and cooling). The standard is uncompromising: an airport must demonstrate a reduction of at least 90% in these absolute emissions, with only the residual amount being addressed through credible carbon removal projects.
Furthermore, the certification extends beyond an airport’s direct control. A critical component of Level 5 is the commitment to tackling Scope 3 emissions. These are all other indirect emissions that occur from activities at the airport, such as those from airlines’ landing and take-off cycles, ground handling services, and passenger transportation to and from the airport. To be certified, Salvador Bahia had to present a clear and robust plan to achieve net-zero for these Scope 3 emissions by 2050, demonstrating a holistic approach to decarbonizing the entire airport ecosystem.
This comprehensive requirement is what sets Level 5 apart. It signifies a shift from merely managing an airport’s own carbon footprint to influencing and leading the broader aviation community toward a sustainable future. It’s a commitment to systemic change, not just operational tweaks.
“This milestone marks a major step forward on the American continent in the decarbonisation of our airport activities and aviation as a whole. It reflects the outstanding commitment of our teams and our determination to take decisive action across our airports worldwide.”, Nicolas Notebaert, CEO of Concessions at VINCI and President of VINCI Airports
Setting ambitious goals is one thing; executing a strategy to meet them is another. Salvador Bahia Airport, under the operation of VINCI Airports since 2018, implemented a series of concrete, high-impact initiatives to systematically reduce its carbon footprint. This wasn’t a single project but a multi-faceted approach that addressed energy consumption, operational efficiency, and stakeholder collaboration. A cornerstone of the airport’s strategy was a decisive shift to clean energy. Two large-scale photovoltaic plants were installed on-site, with a total capacity of 6 MWp. This solar farm now supplies 100% of the renewable energy required for the airport’s own operations. The impact extends even further, as the clean energy generated also powers third-party cargo facilities, demonstrating a commitment to greening the entire airport complex. By ensuring all tenants also use 100% renewable energy, the airport has effectively eliminated its Scope 2 emissions.
Beyond clean energy generation, the airport undertook a thorough review of its ground operations. Gas-powered equipment, a significant source of Scope 1 emissions, was systematically replaced with electric alternatives, particularly in high-consumption areas like tenant restaurants. The airport’s own vehicle fleet was also converted to run on either electricity or biofuels, further reducing direct emissions. This focus on electrification and sustainable fuels was critical to achieving the steep 90% reduction in absolute emissions required for Level 5.
No operation can eliminate 100% of its emissions overnight. For the small fraction of residual emissions that remain, Salvador Bahia Airport has invested in certified carbon sequestration projects. This includes supporting a 3,879-hectare reforestation initiative in Brazil’s Corumbá region. This project not only helps balance the airport’s carbon ledger but also delivers tangible socio-economic benefits by creating local jobs. Crucially, the airport maintains an ongoing dialogue with all its partners and stakeholders, from airlines to ground handlers, to promote joint action and foster a collective sense of responsibility for reducing Scope 3 emissions.
Salvador Bahia Airport’s ACA Level 5 certification is more than just a “first.” It is a powerful case study demonstrating that with strategic investment, operational commitment, and a clear vision, achieving net-zero in direct airport operations is an attainable goal. It effectively raises the bar for the entire aviation industry, particularly in the Americas, proving that private sector management of public infrastructure can drive ambitious environmental progress. The specific actions taken, from building a solar farm to electrifying fleets, provide a tangible roadmap for other airports to follow.
Looking ahead, this achievement will likely accelerate the decarbonization efforts of other airports. As pressure mounts from regulators, investors, and the public, having a real-world example of success is invaluable. Salvador Bahia’s milestone is a clear signal that the future of aviation must be sustainable, and it has provided a credible, verifiable blueprint for how to get there. It is a story of commitment not just to a target, but to the deep, systemic changes required to build a truly net-zero industry.
Question: What is the Airport Carbon Accreditation (ACA) program? Question: What makes ACA Level 5 so difficult to achieve? Question: What are Scope 1, 2, and 3 emissions? Sources: VINCI Airports Newsroom
A New Benchmark in Aviation: Salvador Bahia Airport’s Landmark Achievement
Deconstructing the Milestone: What ACA Level 5 Truly Means
The Rigors of Level 5
The Blueprint in Action: How Salvador Bahia Achieved Net-Zero
Harnessing Renewable Energy
Operational Overhaul and Electrification
Addressing Residual Emissions and Engaging Partners
Conclusion: A New Standard for the Industry
FAQ
Answer: It is the only globally recognized carbon management certification program for airports. Administered by Airports Council International (ACI), it independently assesses and recognizes airports’ efforts to manage and reduce their CO2 emissions through a structured, multi-level framework.
Answer: Level 5 is the highest tier and requires an airport to have achieved and maintained net-zero emissions for its direct operations (Scopes 1 and 2), with at least a 90% absolute reduction. It also demands a comprehensive plan and commitment to achieving net-zero for all indirect (Scope 3) emissions by 2050.
Answer: Scope 1 covers direct emissions from sources owned or controlled by the airport (e.g., airport-owned vehicles). Scope 2 covers indirect emissions from purchased electricity. Scope 3 includes all other indirect emissions from airport-related activities, such as airline operations, ground handling, and passenger travel to the airport.
Photo Credit: Vinci Airports
Route Development
Tennessee Bill Proposes State Control Over Major Airport Boards
Senate Bill 2473 aims to transfer majority control of Tennessee’s major airport boards from local to state officials, restructuring governance and financial powers.
This article summarizes reporting by Local Memphis. Additional context is provided via comprehensive legislative research.
Tennessee state lawmakers are moving forward with legislation that would transfer majority control of the state’s major metropolitan and regional Airports boards from local municipalities to state officials. According to reporting by Local Memphis, Senate Bill 2473 advanced on Wednesday, March 25, 2026, setting the stage for a significant shift in aviation governance across the state.
The bill, sponsored by Senator Paul Bailey and House Speaker Cameron Sexton, targets the current boards of several major airports, including the Memphis-Shelby County Airport Authority. If passed, the legislation would vacate these locally appointed bodies, allowing state lawmakers and the governor to appoint the majority of the new board members.
Legislative research indicates that Senate Bill 2473 and its House companion, House Bill 2507, would standardize airport governance by replacing existing authorities with a uniform nine-member commission. Under this new structure, state officials would hold the power to appoint six of the nine members. Specifically, the Governor, the House Speaker, and the Senate Speaker would each be granted two appointments. Local officials, such as city mayors, would be left to appoint the remaining three members.
The legislation also introduces strict eligibility requirements. According to the provided legislative context, the bill explicitly prohibits police officers, city or county employees, and individuals with financial stakes in the airport from serving on these newly formed boards.
In addition to restructuring the boards, a companion measure is reportedly advancing that would alter the financial operations of these airports. This measure would allow airports in Memphis, Chattanooga, and the Tri-Cities to borrow money or issue bonds independently, removing the current requirement for approval from local municipal leadership.
To understand the current legislative push, we must look back at a similar effort in 2023. State lawmakers previously passed a law aimed at vacating the Metro Nashville Airport Authority to replace it with a state-appointed board. However, Metro Nashville successfully sued the state, arguing that the legislation violated the “Home Rule” amendment of the Tennessee Constitution, which protects local governments from targeted state legislation without local consent.
In October 2023, a three-judge panel ruled the state’s takeover unconstitutional, noting that the law specifically targeted Nashville while intentionally excluding Memphis, home to the world’s busiest cargo airport. This ruling was unanimously upheld by a state appeals court in April 2025. By expanding the scope of Senate Bill 2473 to include all major metropolitan and regional airports across Tennessee, including Nashville, Memphis, Knoxville, Chattanooga, and the Tri-Cities, lawmakers are actively attempting to bypass the legal hurdles that defeated their 2023 effort. Applying the law statewide is a strategic move designed to make the bill more defensible against future constitutional challenges.
If enacted, the bill will drastically alter the governance of several major economic hubs. For example, the Memphis-Shelby County Airport Authority is currently governed by a seven-member board, with five members appointed by the Memphis Mayor and two by the Shelby County Mayor. As reported by Local Memphis, the new bill would strip local leaders of this majority control. Similarly, the Tri-Cities Airport Authority, currently a 12-member board with diverse municipal and county representation, would be reduced to nine members, leaving only three local seats and forcing current city employees to vacate their positions.
Proponents of the bill, including House Speaker Cameron Sexton, argue that the state invests significantly more tax revenue into these regional airports than local municipal governments do. They contend that because these airports serve populations far beyond a single city’s limits, having board members from outside the immediate local area is beneficial and justifies proportional state representation.
Conversely, local officials and Democratic lawmakers argue that municipal representatives are better equipped to understand the specific needs of the communities these airports serve. Opponents express deep concern that shifting control to state politicians will heavily politicize boards that are currently functioning effectively and maintaining strong financial positions.
During the Senate Transportation and Safety Committee meeting on March 25, 2026, Senator Heidi Campbell (D-Nashville) was the sole dissenting vote against recommending the bill. Highlighting the likelihood of inevitable, multi-year legal battles, Campbell criticized the legislation:
“[This bill will create a] big mess.”
We observe that the ongoing tension between state and local authorities over infrastructure control is not unique to Tennessee, but the aggressive legislative maneuvering here highlights a significant shift in aviation governance. While standardizing board structures and granting financial autonomy could streamline certain statewide transportation goals, the abrupt removal of local institutional knowledge poses a risk to operational continuity. Furthermore, despite the state’s attempt to circumvent the “Home Rule” amendment by broadening the bill’s scope, the forced restructuring of highly localized assets like the Memphis-Shelby County Airport Authority is highly likely to trigger a new wave of complex constitutional litigation.
Senate Bill 2473 is a piece of Tennessee legislation that would vacate current local airport authority boards and replace them with a nine-member commission, where the majority of members (six) are appointed by state officials rather than local municipalities.
The bill targets major metropolitan and regional airports across Tennessee, including those in Memphis, Nashville, Knoxville, Chattanooga, and the Tri-Cities. State lawmakers argue that because the state provides significant tax revenue to these regional assets, it should have proportional representation on their governing boards. Opponents argue it is an overreach that strips local communities of control over their own infrastructure.
Sources:
Legislative Mechanics and Board Restructuring
The Proposed Nine-Member Commission
Financial Autonomy Measures
Historical Context: The 2023 Precedent
The Nashville Takeover Attempt
A Strategic Legislative Shift
Local Impact and Diverging Perspectives
Disruptions to Local Governance
Arguments For and Against
AirPro News analysis
Frequently Asked Questions
What is Senate Bill 2473?
Which airports are affected by this bill?
Why is the state trying to take over these boards?
Photo Credit: Family Action Council of Tennessee
Route Development
Alstom to Upgrade Houston Airport Skyway with New Vehicles and Tech
Alstom will modernize Houston’s Skyway with 16 new vehicles, Urbalis control tech, and a 15-year maintenance contract valued at €380 million.
This article is based on an official press release from Alstom.
Alstom has announced a major agreement to overhaul the automated people mover (APM) system at George Bush Intercontinental Airport (IAH) in Houston, Texas. According to an official company press release, the €380 million ($437 million) contract includes comprehensive upgrades to the airport’s Skyway system and a 15-year extension for operations and maintenance services.
The modernization effort comes as the Houston airport undergoes a multi-billion-dollar expansion to handle surging traveler volumes, which exceeded 48 million passengers last year. We note that this infrastructure investment aims to minimize service disruptions and improve passenger flow between terminals during peak demand.
Under the terms of the agreement, Alstom will deliver 16 new Innovia APM R vehicles to replace the aging fleet. The company stated in its release that the project also involves constructing a new Operations Control Center and upgrading the system’s communications and automatic train control technologies to the Urbalis platform.
Additionally, station doors across all terminals will be replaced to facilitate safer and faster boarding. To minimize the impact on travelers while the Skyway is out of service for these upgrades, interim busing will be provided, according to the announcement.
Beyond the hardware and software improvements, the contract secures Alstom’s role in operating and maintaining the Skyway for another 15 years. The manufacturer noted that a dedicated 48-person on-site team will manage the system’s daily reliability.
Alstom has managed the Skyway APM for two decades using the original Innovia APM 100 vehicles. The company highlighted its strong operational track record at the airport, reporting a 99.63% availability rate for the current system in 2024.
“Modernizing Houston’s Skyway system is essential to meeting the needs of one of the fastest-growing airports in the United States. This next-generation APM will deliver more reliable, seamless travel for millions of passengers every year.”
The Houston contract builds upon Alstom’s extensive footprint in the automated transit market. According to the press release, the company’s Innovia APM systems are currently utilized at 15 different airports across the United States. Globally, the manufacturer has delivered over 30 automated people mover systems. Furthermore, the integration of the Urbalis automatic train control system at IAH reflects a wider deployment of this technology. The company noted that its Urbalis signaling system is active on more than 190 metro lines across 32 countries, with 74 of those lines operating on a completely automatic, driverless basis. As a major supplier in the U.S. market, Alstom reports having delivered over 12,000 new or renovated vehicles for various domestic rail agencies and airports.
We view this contract as a significant reinforcement of Alstom’s footprint in the United States transit and aviation sectors. By securing both the capital upgrade and a 15-year maintenance agreement, the company ensures a steady, long-term revenue stream while locking in its proprietary technology at a major international hub. The transition to the new Innovia APM R vehicles and the Urbalis signaling system aligns with broader industry trends toward fully automated, high-capacity airport transit solutions capable of handling record-breaking passenger growth.
The contract is valued at approximately €380 million, or $437 million, according to the manufacturer’s press release.
Alstom will deploy 16 new Innovia APM R vehicles as part of the Skyway upgrade.
Yes, there will be periods when the Skyway is out of service. The airport will provide interim busing to minimize disruptions for passengers.
Comprehensive Skyway Modernization
Fleet and Infrastructure Upgrades
Long-Term Operations and Maintenance
Building on a Two-Decade Partnership
Industry Context and Broader U.S. Presence
Expanding Automated Transit Solutions
AirPro News analysis
Frequently Asked Questions
What is the value of the Alstom contract at Houston Intercontinental Airport?
How many new vehicles will be deployed?
Will the Skyway be closed during the upgrades?
Sources
Photo Credit: Alstom
Route Development
Chase Field Industrial Airport Gains Texas Aviation System Designation
Chase Field Industrial Airport in Beeville, Texas, secures Texas Airport System Plan inclusion, unlocking state funding for maintenance and upgrades.
This article is based on an official press release from the Bee Development Authority.
On March 24, 2026, the Bee Development Authority (BDA) announced that the Chase Field Industrial Airport Complex (FAA LID: TX2) in Beeville, Texas, has been officially accepted into the Texas Airport System Plan (TASP) by the Texas Department of Transportation (TxDOT). This milestone designation recognizes the facility as a vital component of the state’s aviation infrastructure.
According to the BDA’s official press release, this designation unlocks the first state or federal funding contribution for the facility since the closure of Naval Air Station (NAS) Chase Field in 1993. The inclusion provides the airport with critical financial support, including reimbursements for annual maintenance and access to matching grants for major capital improvements.
The 1,850-acre complex, located approximately five miles southeast of Beeville in Bee County, is strategically positioned to leverage this new funding. The BDA stated that the financial backing will help attract aerospace, advanced manufacturing, and maintenance, repair, and overhaul (MRO) operations to South Texas, ultimately driving regional job creation and economic development.
Administered by the TxDOT Aviation Division, the TASP identifies airports that play an essential role in the economic and social development of Texas. According to supplementary research data provided alongside the release, out of over 1,600 landing facilities in the state, only about 292 airports meet the stringent requirements for inclusion in the plan. This selective inclusion minimizes the duplication of facilities and concentrates public financial resources where they are most effective.
Acceptance into the TASP makes Chase Field eligible for TxDOT’s Routine Airport Maintenance Program (RAMP). The BDA notes this program will provide critical reimbursements for approximately $100,000 in annual maintenance costs at the airfield. Furthermore, the airport gains access to the Aviation Capital Improvement Program (ACIP) and Aviation Facilities Development Program (AFDP). These programs offer 90/10 matching grants, meaning the state or federal government covers 90 percent of the cost while the local sponsor covers 10 percent, empowering the BDA to undertake major infrastructure upgrades.
“This acceptance into the Texas Airport System Plan marks the first federal or state funding contribution to the Bee Development Authority since the closure of Naval Air Station Chase Field in 1993. The state funds will now provide critical reimbursements for approximately $100,000 of annual maintenance costs at the airfield, as well as grant eligibility for 90/10 matching programs on Capital Improvement Projects, empowering the BDA to build new facilities and drive meaningful economic growth for Bee County and South Texas.”, Orlando Vasquez, BDA Board Chair
The site has a rich military history. Originally leased in 1943 as a municipal airport, it was commissioned by the U.S. Navy to train pilots during World War II. It was recommissioned in 1954 for jet training and upgraded to a full Naval Air Station in 1968. Historical data indicates that during its peak, the base trained approximately one-third of all U.S. Navy pilots serving in the Vietnam War. Following a recommendation by the 1991 Base Realignment and Closure (BRAC) Commission, NAS Chase Field officially closed in 1993, resulting in the loss of thousands of jobs in Bee County.
Established in 2001 under Texas state legislation, the BDA was tasked with managing and redeveloping the former military installation. Today, the public-use airport features heavy-duty military-grade infrastructure. Facility specifications highlight an 8,000-foot lighted runway, over 500,000 square feet of concrete tarmac, two 90,000-square-foot hangars, a 30,000-square-foot warehouse, and a state-of-the-art paint booth. The facility was officially designated as a Public-Use Airport by the FAA and TxDOT in May 2016. “Acceptance into the Texas Airport System Plan is a significant step forward for Chase Field and the broader Beeville and Bee County community. This recognition from TxDOT validates our ongoing efforts to reposition this former naval air station as a modern, high-capacity aviation and industrial asset.”, Michael Blair, BDA Executive Director
The BDA credited state legislative delegation members for their advocacy in achieving this administrative recognition. State Senator Adam Hinojosa (District 27) and State Representative J.M. Lozano (District 43) worked closely with the BDA and TxDOT to advance the airport’s inclusion in the TASP, highlighting its strategic importance to the region.
In the press release, Senator Hinojosa described the inclusion as a “major win for our region” that will unlock new opportunities for prosperity in Beeville and surrounding communities. Representative Lozano echoed this sentiment, affirming Chase Field’s strategic value and expressing a commitment to securing resources to transform the site into a hub for aerospace and advanced industries.
At AirPro News, we view the successful transition of former military bases into civilian industrial hubs as a proven economic development strategy. Chase Field has previously demonstrated this potential; historical data shows it hosted defense contractors Kay and Associates and Sikorsky for helicopter MRO operations, employing up to 347 skilled aviation professionals until 2012.
With its existing heavy-duty infrastructure and new access to state funding for modernization, Chase Field is highly competitive for companies seeking “site-ready” locations. The TASP designation serves as a strong signal to private investors and aerospace companies that the state of Texas recognizes and financially backs the long-term viability of the airport. Proximity to major logistics hubs, including the Port of Corpus Christi (57 miles away) and San Antonio (100 miles away), further bolsters its appeal for industrial expansion.
Administered by the TxDOT Aviation Division, the TASP identifies airports that play an essential role in the economic and social development of Texas. Inclusion in the plan makes airports eligible for specific state and federal funding programs.
Through TxDOT’s Routine Airport Maintenance Program (RAMP), the airport is eligible for reimbursements covering approximately $100,000 in annual maintenance costs. It also gains access to 90/10 matching grants for major capital improvements.
NAS Chase Field officially closed in 1993 following a recommendation by the 1991 Base Realignment and Closure (BRAC) Commission.
Chase Field Industrial Airport Complex Secures Milestone State Aviation Designation
Unlocking State Funding and Capital Improvements
Financial Mechanisms and Grants
From Naval Air Station to Modern Industrial Hub
Historical Context and Infrastructure
Legislative Support and Regional Impact
Advocacy from State Representatives
AirPro News analysis
Frequently Asked Questions (FAQ)
What is the Texas Airport System Plan (TASP)?
How much funding will Chase Field receive?
When did Naval Air Station Chase Field close?
Sources
Photo Credit: Bee Development Authority
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